WorldWideScience

Sample records for cacore software developer

  1. The caCORE Software Development Kit: Streamlining construction of interoperable biomedical information services

    Directory of Open Access Journals (Sweden)

    Warzel Denise

    2006-01-01

    Full Text Available Abstract Background Robust, programmatically accessible biomedical information services that syntactically and semantically interoperate with other resources are challenging to construct. Such systems require the adoption of common information models, data representations and terminology standards as well as documented application programming interfaces (APIs. The National Cancer Institute (NCI developed the cancer common ontologic representation environment (caCORE to provide the infrastructure necessary to achieve interoperability across the systems it develops or sponsors. The caCORE Software Development Kit (SDK was designed to provide developers both within and outside the NCI with the tools needed to construct such interoperable software systems. Results The caCORE SDK requires a Unified Modeling Language (UML tool to begin the development workflow with the construction of a domain information model in the form of a UML Class Diagram. Models are annotated with concepts and definitions from a description logic terminology source using the Semantic Connector component. The annotated model is registered in the Cancer Data Standards Repository (caDSR using the UML Loader component. System software is automatically generated using the Codegen component, which produces middleware that runs on an application server. The caCORE SDK was initially tested and validated using a seven-class UML model, and has been used to generate the caCORE production system, which includes models with dozens of classes. The deployed system supports access through object-oriented APIs with consistent syntax for retrieval of any type of data object across all classes in the original UML model. The caCORE SDK is currently being used by several development teams, including by participants in the cancer biomedical informatics grid (caBIG program, to create compatible data services. caBIG compatibility standards are based upon caCORE resources, and thus the caCORE SDK has

  2. Agile Software Development

    Science.gov (United States)

    Biju, Soly Mathew

    2008-01-01

    Many software development firms are now adopting the agile software development method. This method involves the customer at every level of software development, thus reducing the impact of change in the requirement at a later stage. In this article, the principles of the agile method for software development are explored and there is a focus on…

  3. Maximizing ROI on software development

    CERN Document Server

    Sikka, Vijay

    2004-01-01

    A brief review of software development history. Software complexity crisis. Software development ROI. The case for global software development and testing. Software quality and test ROI. How do you implement global software development and testing. Case studies.

  4. Improving Software Developer's Competence

    DEFF Research Database (Denmark)

    Abrahamsson, Pekka; Kautz, Karlheinz; Sieppi, Heikki

    2002-01-01

    Emerging agile software development methods are people oriented development approaches to be used by the software industry. The personal software process (PSP) is an accepted method for improving the capabilities of a single software engineer. Five original hypotheses regarding the impact...... and time estimation skills but that the productivity did not decrease and the resulting product quality was improved. The implications of these findings are briefly addressed....

  5. Software engineering architecture-driven software development

    CERN Document Server

    Schmidt, Richard F

    2013-01-01

    Software Engineering: Architecture-driven Software Development is the first comprehensive guide to the underlying skills embodied in the IEEE's Software Engineering Body of Knowledge (SWEBOK) standard. Standards expert Richard Schmidt explains the traditional software engineering practices recognized for developing projects for government or corporate systems. Software engineering education often lacks standardization, with many institutions focusing on implementation rather than design as it impacts product architecture. Many graduates join the workforce with incomplete skil

  6. Agile software development

    CERN Document Server

    Dingsoyr, Torgeir; Moe, Nils Brede

    2010-01-01

    Agile software development has become an umbrella term for a number of changes in how software developers plan and coordinate their work, how they communicate with customers and external stakeholders, and how software development is organized in small, medium, and large companies, from the telecom and healthcare sectors to games and interactive media. Still, after a decade of research, agile software development is the source of continued debate due to its multifaceted nature and insufficient synthesis of research results. Dingsoyr, Dyba, and Moe now present a comprehensive snapshot of the kno

  7. Funding Research Software Development

    Science.gov (United States)

    Momcheva, Ivelina G.

    2017-01-01

    Astronomical software is used by each and every member of our scientific community. Purpose-build software is becoming ever more critical as we enter the regime of large datasets and simulations of increasing complexity. However, financial investments in building, maintaining and renovating the software infrastructure have been uneven. In this talk I will summarize past and current funding sources for astronomical software development, discuss other models of funding and introduce a new initiative for supporting community software at STScI. The purpose of this talk is to prompt discussion about how we allocate resources to this vital infrastructure.

  8. Cleanroom software development

    Science.gov (United States)

    Dyer, M.; Mills, H. D.

    1981-01-01

    The 'cleanroom' software development process is a technical and organizational approach to developing software with certifiable reliability. Key ideas behind the process are well structured software specifications, randomized testing methods and the introduction of statistical controls; but the main point is to deny entry for defects during the development of software. This latter point suggests the use of the term 'cleanroom' in analogy to the defect prevention controls used in the manufacturing of high technology hardware. In the 'cleanroom', the entire software development process is embedded within a formal statistical design, in contrast to executing selected tests and appealing to the randomness of operational settings for drawing statistical inferences. Instead, random testing is introduced as a part of the statistical design itself so that when development and testing are completed, statistical inferences are made about the operation of the system.

  9. Developing Software Simulations

    Directory of Open Access Journals (Sweden)

    Tom Hall

    2007-06-01

    Full Text Available Programs in education and business often require learners to develop and demonstrate competence in specified areas and then be able to effectively apply this knowledge. One method to aid in developing a skill set in these areas is through the use of software simulations. These simulations can be used for learner demonstrations of competencies in a specified course as well as a review of the basic skills at the beginning of subsequent courses. The first section of this paper discusses ToolBook, the software used to develop our software simulations. The second section discusses the process of developing software simulations. The third part discusses how we have used software simulations to assess student knowledge of research design by providing simulations that allow the student to practice using SPSS and Excel.

  10. Systematic Software Development

    DEFF Research Database (Denmark)

    Kuhrmann, Marco; Méndez Fernández, Daniel

    2015-01-01

    makes these countries an attractive host for software companies. Often, high-quality engineering and excellent quality of products, e.g., machinery and equipment, are mentioned. Yet, the question is: Can such arguments be also found for the software industry? We aim at investigating the degree...... project- and quality management and their implementation in practice. So far, our results suggest that the necessity for a systematic software development is well recognized, while software development still follows an ad-hoc rather than a systematized style. Our results provide initial findings, which we......The speed of innovation and the global allocation of resources to accelerate development or to reduce cost put pressure on the software industry. In the global competition, especially so-called high-price countries have to present arguments why the higher development cost is justified and what...

  11. Collaborative software development

    NARCIS (Netherlands)

    M. de Jonge (Merijn); E. Visser; J.M.W. Visser (Joost)

    2001-01-01

    textabstractWe present an approach to collaborative software development where obtaining components and contributing components across organizational boundaries are explicit phases in the development process. A lightweight generative infrastructure supports this approach with an online package base,

  12. Global software development

    DEFF Research Database (Denmark)

    Matthiesen, Stina

    2016-01-01

    This overview presents the mid stages of my doctoral research-based on ethnographic work conducted in IT companies in India and in Denmark-on collaborative work within global software development (GSD). In the following I briefly introduce how this research seeks to spark a debate in CSCW...... by challenging contemporary ideals about software development outsourcing through the exploration of the multiplicities and asymmetric dynamics inherent in the collaborative work of GSD....

  13. Six Sigma software development

    CERN Document Server

    Tayntor, Christine B

    2002-01-01

    Since Six Sigma has had marked success in improving quality in other settings, and since the quality of software remains poor, it seems a natural evolution to apply the concepts and tools of Six Sigma to system development and the IT department. Until now however, there were no books available that applied these concepts to the system development process. Six Sigma Software Development fills this void and illustrates how Six Sigma concepts can be applied to all aspects of the evolving system development process. It includes the traditional waterfall model and in the support of legacy systems,

  14. Agile software development

    CERN Document Server

    Stober, Thomas

    2009-01-01

    Software Development is moving towards a more agile and more flexible approach. It turns out that the traditional 'waterfall' model is not supportive in an environment where technical, financial and strategic constraints are changing almost every day. But what is agility? What are today's major approaches? And especially: What is the impact of agile development principles on the development teams, on project management and on software architects? How can large enterprises become more agile and improve their business processes, which have been existing since many, many years? What are the limit

  15. Global Software Development

    DEFF Research Database (Denmark)

    Søderberg, Anne-Marie; Krishna, S.; Bjørn, Pernille

    2013-01-01

    accounts of close collaboration processes in two large and complex projects, where off-shoring of software development is moved to a strategic level, we found that the vendor was able to establish a strategic partnership through long-term engagement with the field of banking and insurance as well...

  16. Agile distributed software development

    DEFF Research Database (Denmark)

    Persson, John Stouby; Mathiassen, Lars; Aaen, Ivan

    2012-01-01

    While face-to-face interaction is fundamental in agile software development, distributed environments must rely extensively on mediated interactions. Practicing agile principles in distributed environments therefore poses particular control challenges related to balancing fixed vs. evolving quality...... requirements and people vs. process-based collaboration. To investigate these challenges, we conducted an in-depth case study of a successful agile distributed software project with participants from a Russian firm and a Danish firm. Applying Kirsch’s elements of control framework, we offer an analysis of how...

  17. The CAP cancer protocols – a case study of caCORE based data standards implementation to integrate with the Cancer Biomedical Informatics Grid

    Directory of Open Access Journals (Sweden)

    Warzel Denise B

    2006-06-01

    Full Text Available Abstract Background The Cancer Biomedical Informatics Grid (caBIG™ is a network of individuals and institutions, creating a world wide web of cancer research. An important aspect of this informatics effort is the development of consistent practices for data standards development, using a multi-tier approach that facilitates semantic interoperability of systems. The semantic tiers include (1 information models, (2 common data elements, and (3 controlled terminologies and ontologies. The College of American Pathologists (CAP cancer protocols and checklists are an important reporting standard in pathology, for which no complete electronic data standard is currently available. Methods In this manuscript, we provide a case study of Cancer Common Ontologic Representation Environment (caCORE data standard implementation of the CAP cancer protocols and checklists model – an existing and complex paper based standard. We illustrate the basic principles, goals and methodology for developing caBIG™ models. Results Using this example, we describe the process required to develop the model, the technologies and data standards on which the process and models are based, and the results of the modeling effort. We address difficulties we encountered and modifications to caCORE that will address these problems. In addition, we describe four ongoing development projects that will use the emerging CAP data standards to achieve integration of tissue banking and laboratory information systems. Conclusion The CAP cancer checklists can be used as the basis for an electronic data standard in pathology using the caBIG™ semantic modeling methodology.

  18. The Ragnarok Software Development Environment

    DEFF Research Database (Denmark)

    Christensen, Henrik Bærbak

    1999-01-01

    , and collaboration. The leitmotif is the software architecture, which is extended to handle managerial data in addition to source code; this extended software architecture is put under tight version- and configuration management control and furthermore used as basis for visualisation. Preliminary results of using......Ragnarok is an experimental software development environment that focuses on enhanced support for managerial activities in large scale software development taking the daily work of the software developer as its point of departure. The main emphasis is support in three areas: management, navigation...

  19. Secure software development training course

    Directory of Open Access Journals (Sweden)

    Victor S. Gorbatov

    2017-06-01

    Full Text Available Information security is one of the most important criteria for the quality of developed software. To obtain a sufficient level of application security companies implement security process into software development life cycle. At this stage software companies encounter with deficit employees who able to solve problems of software design, implementation and application security. This article provides a description of the secure software development training course. Training course of application security is designed for co-education students of different IT-specializations.

  20. Interface-Based Software Development

    OpenAIRE

    Rais, Aziz

    2017-01-01

    Even though there are many software development and project management methodologies available, research and practice both show that IT software development projects still fail, and that the quality of software products does not always meet customers' expectations. There might be multiple causes for such failures, but some of these reasons can be seen to influence or create others. Therefore, the larger the project is, the higher its risk of failure, especially if the teams involved work remo...

  1. Educational Software: A Developer's Perspective.

    Science.gov (United States)

    Armstrong, Timothy C.; Loane, Russell F.

    1994-01-01

    Examines the current status and short-term future of computer software development in higher education. Topics discussed include educational advantages of software; current program development techniques, including object oriented programming; and market trends, including IBM versus Macintosh and multimedia programs. (LRW)

  2. Reviews in innovative software development

    DEFF Research Database (Denmark)

    Aaen, Ivan; Boelsmand, Jeppe Vestergaard; Jensen, Rasmus

    2009-01-01

    This paper proposes a new review approach for innovative software development. Innovative software development implies that requirements are rarely available as a basis for reviewing and that the purpose of a review is as much to forward additional ideas, as to validate what has been accomplished...

  3. Aspect-Oriented Software Development

    NARCIS (Netherlands)

    Filman, R.E.; Elrad, T.; Clarke, S.; Aksit, Mehmet; Unknown, [Unknown

    2004-01-01

    Software development is changing. The opportunities of the Internet, computerized businesses, and computer-savvy consumers, the exponential decline in the cost of computation and communication, and the increasingly dynamic environment for longer-living systems are pressing software developers to

  4. From Software Development to Software Assembly

    NARCIS (Netherlands)

    Sneed, Harry M.; Verhoef, Chris

    2016-01-01

    The lack of skilled programming personnel and the growing burden of maintaining customized software are forcing organizations to quit producing their own software. It's high time they turned to ready-made, standard components to fulfill their business requirements. Cloud services might be one way to

  5. Software development without languages

    Science.gov (United States)

    Osborne, Haywood S.

    1988-01-01

    Automatic programming generally involves the construction of a formal specification; i.e., one which allows unambiguous interpretation by tools for the subsequent production of the corresponding software. Previous practical efforts in this direction have focused on the serious problems of: (1) designing the optimum specification language; and (2) mapping (translating or compiling) from this specification language to the program itself. The approach proposed bypasses the above problems. It postulates that the specification proper should be an intermediate form, with the sole function of containing information sufficient to facilitate construction of programs and also of matching documentation. Thus, the means of forming the intermediary becomes a human factors task rather than a linguistic one; human users will read documents generated from the specification, rather than the specification itself.

  6. Software Development at Belle II

    Science.gov (United States)

    Kuhr, Thomas; Hauth, Thomas

    2015-12-01

    Belle II is a next generation B-factory experiment that will collect 50 times more data than its predecessor Belle. This requires not only a major upgrade of the detector hardware, but also of the simulation, reconstruction, and analysis software. The challenges of the software development at Belle II and the tools and procedures to address them are reviewed in this article.

  7. Customer Interaction in Software Development: A Comparison of Software Methodologies Deployed in Namibian Software Firms

    CSIR Research Space (South Africa)

    Iyawa, GE

    2016-01-01

    Full Text Available Software methodologies provide guidelines for the development of software applications. Studies reveal that customer interaction in the software development process improves the chances that software applications will meet customers’ needs. Despite...

  8. Lean software development in action

    CERN Document Server

    Janes, Andrea

    2014-01-01

    This book illustrates how goal-oriented, automated measurement can be used to create Lean organizations and to facilitate the development of Lean software, while also demonstrating the practical implementation of Lean software development by combining tried and trusted tools. In order to be successful, a Lean orientation of software development has to go hand in hand with a company's overall business strategy. To achieve this, two interrelated aspects require special attention: measurement and experience management. In this book, Janes and Succi provide the necessary knowledge to establish "

  9. Software development for teleroentgenogram analysis

    Science.gov (United States)

    Goshkoderov, A. A.; Khlebnikov, N. A.; Obabkov, I. N.; Serkov, K. V.; Gajniyarov, I. M.; Aliev, A. A.

    2017-09-01

    A framework for the analysis and calculation of teleroentgenograms was developed. Software development was carried out in the Department of Children's Dentistry and Orthodontics in Ural State Medical University. The software calculates the teleroentgenogram by the original method which was developed in this medical department. Program allows designing its own methods for calculating the teleroentgenograms by new methods. It is planned to use the technology of machine learning (Neural networks) in the software. This will help to make the process of calculating the teleroentgenograms easier because methodological points will be placed automatically.

  10. Some challenges facing software engineers developing software for scientists

    OpenAIRE

    Segal, Judith

    2009-01-01

    In this paper, the author discusses two types of challenges facing software engineers as they develop software for scientists. The first type is those challenges that arise from the experience that scientists might have of developing their own software. From this experience, they internalise a model of software development but may not realise the contextual factors which make such a model successful. They thus have expectations and assumptions which prove challenging to software engineers. Th...

  11. Software Development Standard Processes (SDSP)

    Science.gov (United States)

    Lavin, Milton L.; Wang, James J.; Morillo, Ronald; Mayer, John T.; Jamshidian, Barzia; Shimizu, Kenneth J.; Wilkinson, Belinda M.; Hihn, Jairus M.; Borgen, Rosana B.; Meyer, Kenneth N.; hide

    2011-01-01

    A JPL-created set of standard processes is to be used throughout the lifecycle of software development. These SDSPs cover a range of activities, from management and engineering activities, to assurance and support activities. These processes must be applied to software tasks per a prescribed set of procedures. JPL s Software Quality Improvement Project is currently working at the behest of the JPL Software Process Owner to ensure that all applicable software tasks follow these procedures. The SDSPs are captured as a set of 22 standards in JPL s software process domain. They were developed in-house at JPL by a number of Subject Matter Experts (SMEs) residing primarily within the Engineering and Science Directorate, but also from the Business Operations Directorate and Safety and Mission Success Directorate. These practices include not only currently performed best practices, but also JPL-desired future practices in key thrust areas like software architecting and software reuse analysis. Additionally, these SDSPs conform to many standards and requirements to which JPL projects are beholden.

  12. Project Management - Software Development Methodology

    OpenAIRE

    Zvonimir Vukovic

    2005-01-01

    This article talks about project management in a software development area. The emphasis is given to the process of software development and the main responsibilities of the project manager. Furthermore, some aspects of different management topics that can be found in almost all projects nowadays are also described. To have a successful project one needs to have a team of persons who will participate in the project according to their professional expertise. The teams and sub-teams are defined...

  13. Simulation Aided Product Software Development

    OpenAIRE

    Hyvönen, Jani

    2010-01-01

    This work is a study of simulation environments as tools for product software development from architecture definition phase to testing the actual end product software code. The purpose of the work was to find a feasible way to utilize simulation environments for improving product time to market. The work was initiated to renew the existing simulation methods to correspond the demands of the present-day process of developing products. Work effort mainly consisted of studying the e...

  14. Social software in global software development

    DEFF Research Database (Denmark)

    Giuffrida, Rosalba; Dittrich, Yvonne

    2010-01-01

    variety of tools such as: instant messaging, internet forums, mailing lists, blogs, wikis, social network sites, social bookmarking, social libraries, virtual worlds. Though normally rather belonging to the private realm, the use of social software in corporate context has been reported, e.g. as a way...

  15. Auditing Community Software Development

    Directory of Open Access Journals (Sweden)

    Mészáros Gergely

    2015-12-01

    Full Text Available In accordance with European efforts related to Critical Information Infrastructure Protection, in Hungary a special department called LRL-IBEK has been formed which is designated under the Disaster Management. While specific security issues of commercial applications are well understood and regulated by widely applied standards, increasing share of information systems are developed partly or entirely in a different way, by the community. In this paper different issues of the open development style will be discussed regarding the high requirements of Critical Information Infrastructures, and possible countermeasures will be suggested for the identified problems.

  16. Impact of Agile Software Development Model on Software Maintainability

    Science.gov (United States)

    Gawali, Ajay R.

    2012-01-01

    Software maintenance and support costs account for up to 60% of the overall software life cycle cost and often burdens tightly budgeted information technology (IT) organizations. Agile software development approach delivers business value early, but implications on software maintainability are still unknown. The purpose of this quantitative study…

  17. Fundamentals of multicore software development

    CERN Document Server

    Pankratius, Victor; Tichy, Walter F

    2011-01-01

    With multicore processors now in every computer, server, and embedded device, the need for cost-effective, reliable parallel software has never been greater. By explaining key aspects of multicore programming, Fundamentals of Multicore Software Development helps software engineers understand parallel programming and master the multicore challenge. Accessible to newcomers to the field, the book captures the state of the art of multicore programming in computer science. It covers the fundamentals of multicore hardware, parallel design patterns, and parallel programming in C++, .NET, and Java. It

  18. Patterns in Software Development

    DEFF Research Database (Denmark)

    Corry, Aino Vonge

    of abstract solutions often occurring problems, and the benefits they are claimed to provide, are: common vocabulary, enhanced documentation and shared experience. In the writing of our masters thesis, it occurred to us that things could be better, and that something had to be done to actually achieve...... Görel Hedin at Lund Institute of Technology.  During my months there we developed the idea of a class library for design patterns further. The result was a CASE tool that uses reference attribute grammars to ease the application of, and documentation with, design patterns. All in all the research...

  19. Software Development Risk Management Model

    OpenAIRE

    Islam, Shareeful

    2011-01-01

    Risk management is an effective tool to control risks in software projects and increases the likelihood of project success. Risk management needs to be integrated as early as possible in the project. This dissertation proposes a Goal-driven Software Development Risk Management Model (GSRM) and explicitly integrates it into requirements engineering phase. This integration provides an early warning of potential problems so that both preventive and corrective actions can be undertaken to avoid t...

  20. Understanding flexible and distributed software development processes

    OpenAIRE

    Agerfalk, Par J.; Fitzgerald, Brian

    2006-01-01

    peer-reviewed The minitrack on Flexible and Distributed Software Development Processes addresses two important and partially intertwined current themes in software development: process flexibility and globally distributed software development

  1. The MINERVA Software Development Process

    Science.gov (United States)

    Narkawicz, Anthony; Munoz, Cesar A.; Dutle, Aaron M.

    2017-01-01

    This paper presents a software development process for safety-critical software components of cyber-physical systems. The process is called MINERVA, which stands for Mirrored Implementation Numerically Evaluated against Rigorously Verified Algorithms. The process relies on formal methods for rigorously validating code against its requirements. The software development process uses: (1) a formal specification language for describing the algorithms and their functional requirements, (2) an interactive theorem prover for formally verifying the correctness of the algorithms, (3) test cases that stress the code, and (4) numerical evaluation on these test cases of both the algorithm specifications and their implementations in code. The MINERVA process is illustrated in this paper with an application to geo-containment algorithms for unmanned aircraft systems. These algorithms ensure that the position of an aircraft never leaves a predetermined polygon region and provide recovery maneuvers when the region is inadvertently exited.

  2. Usability in open source software development

    DEFF Research Database (Denmark)

    Andreasen, M. S.; Nielsen, H. V.; Schrøder, S. O.

    2006-01-01

    Open Source Software (OSS) development has gained significant importance in the production of soft-ware products. Open Source Software developers have produced systems with a functionality that is competitive with similar proprietary software developed by commercial software organizations. Yet OSS...

  3. Motorola Secure Software Development Model

    Directory of Open Access Journals (Sweden)

    Francis Mahendran

    2008-08-01

    Full Text Available In today's world, the key to meeting the demand for improved security is to implement repeatable processes that reliably deliver measurably improved security. While many organizations have announced efforts to institutionalize a secure software development process, there is little or no industry acceptance for a common process improvement framework for secure software development. Motorola has taken the initiative to develop such a framework, and plans to share this with the Software Engineering Institute for possible inclusion into its Capability Maturity Model Integration (CMMI®. This paper will go into the details of how Motorola is addressing this issue. The model that is being developed is designed as an extension of the existing CMMI structure. The assumption is that the audience will have a basic understanding of the SEI CMM® / CMMI® process framework. The paper will not describe implementation details of a security process model or improvement framework, but will address WHAT security practices are required for a company with many organizations operating at different maturity levels. It is left to the implementing organization to answer the HOW, WHEN, WHO and WHERE aspects. The paper will discuss how the model is being implemented in the Motorola Software Group.

  4. Post-Modern Software Development

    Science.gov (United States)

    Filman, Robert E.

    2005-01-01

    The history of software development includes elements of art, science, engineering, and fashion(though very little manufacturing). In all domains, old ideas give way or evolve to new ones: in the fine arts, the baroque gave way to rococo, romanticism, modernism, postmodernism, and so forth. What is the postmodern programming equivalent? That is, what comes after object orientation?

  5. Human factors in software development

    Energy Technology Data Exchange (ETDEWEB)

    Curtis, B.

    1986-01-01

    This book presents an overview of ergonomics/human factors in software development, recent research, and classic papers. Articles are drawn from the following areas of psychological research on programming: cognitive ergonomics, cognitive psychology, and psycholinguistics. Topics examined include: theoretical models of how programmers solve technical problems, the characteristics of programming languages, specification formats in behavioral research and psychological aspects of fault diagnosis.

  6. Patterns of Software Development Process

    Directory of Open Access Journals (Sweden)

    Sandro Javier Bolaños Castro

    2011-12-01

    Full Text Available "Times New Roman","serif";mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">This article presents a set of patterns that can be found to perform best practices in software processes that are directly related to the problem of implementing the activities of the process, the roles involved, the knowledge generated and the inputs and outputs belonging to the process. In this work, a definition of the architecture is encouraged by using different recurrent configurations that strengthen the process and yield efficient results for the development of a software project. The patterns presented constitute a catalog, which serves as a vocabulary for communication among project participants [1], [2], and also can be implemented through software tools, thus facilitating patterns implementation [3]. Additionally, a tool that can be obtained under GPL (General Public license is provided for this purpose

  7. Managing MDO Software Development Projects

    Science.gov (United States)

    Townsend, J. C.; Salas, A. O.

    2002-01-01

    Over the past decade, the NASA Langley Research Center developed a series of 'grand challenge' applications demonstrating the use of parallel and distributed computation and multidisciplinary design optimization. All but the last of these applications were focused on the high-speed civil transport vehicle; the final application focused on reusable launch vehicles. Teams of discipline experts developed these multidisciplinary applications by integrating legacy engineering analysis codes. As teams became larger and the application development became more complex with increasing levels of fidelity and numbers of disciplines, the need for applying software engineering practices became evident. This paper briefly introduces the application projects and then describes the approaches taken in project management and software engineering for each project; lessons learned are highlighted.

  8. Adopting to Agile Software Development

    Directory of Open Access Journals (Sweden)

    Linkevics Gusts

    2014-12-01

    Full Text Available Agile software development can be made successful, but there is no well-defined way how to achieve this. The problem is that the successful adoption of agile methods and practices is a complex process and this process should be customizable for a particular organization or a team. This research focuses on identification of agile methods and practices. Result of the research is the ranking of agile methods, practices and their usage trends. As some terms of agile software development are interpreted differently in different organizations and teams, terminology used is analyzed. Results of the research can be used as a reference material for those who are planning to adopt agile methods or are looking for the next agile practice to implement. Results will be used for the development of an expert system to support agile adoption.

  9. Management of Software Development Projects

    Directory of Open Access Journals (Sweden)

    Felician ALECU

    2011-04-01

    Full Text Available Any major software development starts with the Initiating process group. Once the charter document is approved, the Planning and then to the Executing stages will follow. Monitoring and Controlling is measuring the potential performance deviation of the project in terms of schedule and costs and performs the related Integrated Change Control activities. At the end, during the Closing, the program/project manager will check the entire work is completed and the objectives are met.

  10. Comparative study on software development methodologies

    OpenAIRE

    Mihai Liviu DESPA

    2014-01-01

    This paper focuses on the current state of knowledge in the field of software development methodologies. It aims to set the stage for the formalization of a software development methodology dedicated to innovation orientated IT projects. The paper starts by depicting specific characteristics in software development project management. Managing software development projects involves techniques and skills that are proprietary to the IT industry. Also the software development project manager han...

  11. Software Development as Music Education Research

    Science.gov (United States)

    Brown, Andrew R.

    2007-01-01

    This paper discusses how software development can be used as a method for music education research. It explains how software development can externalize ideas, stimulate action and reflection, and provide evidence to support the educative value of new software-based experiences. Parallels between the interactive software development process and…

  12. High performance in software development

    CERN Multimedia

    CERN. Geneva; Haapio, Petri; Liukkonen, Juha-Matti

    2015-01-01

    What are the ingredients of high-performing software? Software development, especially for large high-performance systems, is one the most complex tasks mankind has ever tried. Technological change leads to huge opportunities but challenges our old ways of working. Processing large data sets, possibly in real time or with other tight computational constraints, requires an efficient solution architecture. Efficiency requirements span from the distributed storage and large-scale organization of computation and data onto the lowest level of processor and data bus behavior. Integrating performance behavior over these levels is especially important when the computation is resource-bounded, as it is in numerics: physical simulation, machine learning, estimation of statistical models, etc. For example, memory locality and utilization of vector processing are essential for harnessing the computing power of modern processor architectures due to the deep memory hierarchies of modern general-purpose computers. As a r...

  13. Software development process: A case of Nigerian Software ...

    African Journals Online (AJOL)

    Software development process: A case of Nigerian Software Development Organization. EA Anibere, FA Egbokhare. Abstract. No Abstract. Te Information Technologist Vol. 4(1) 2007: pp.1-13. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT.

  14. Risk management in software development projects

    OpenAIRE

    McManus, John

    2004-01-01

    Very few software projects are completed on time, on budget, and to their original specification causing the global IT software industry to lose billions each year in project overruns and reworking software. Research supports that projects usually fail because of management mistakes rather than technical mistakes. Risk Management in Software Development Projects focuses on what the practitioner needs to know about risk in the pursuit of delivering software projects. Risk Management in Softwar...

  15. Stimulating Creativity Through Opportunistic Software Development

    NARCIS (Netherlands)

    Z. Obrenovic; D. Gasevic; A. Eliëns

    2008-01-01

    htmlabstractUsing opportunistic software development principles in computer engineering education encourages students to be creative and to develop solutions that cross the boundaries of diverse technologies. A framework for opportunistic software development education helps to create a space in

  16. TOGAF usage in outsourcing of software development

    Directory of Open Access Journals (Sweden)

    Aziz Ahmad Rais

    2013-12-01

    Full Text Available TOGAF is an Enterprise Architecture framework that provides a method for developing Enterprise Architecture called architecture development method (ADM. The purpose of this paper is whether TOGAF ADM can be used for developing software application architecture. Because the software application architecture is one of the disciplines in application development life cycle, it is important to find out how the enterprise architecture development method can support the application architecture development. Having an open standard that can be used in the application architecture development could help in outsourcing of software development. If ADM could be used for software application architecture development, then we could consider its usability in outsourcing of software development.

  17. Software Development Group. Software Review Center. Microcomputing Working Paper Series.

    Science.gov (United States)

    Perkey, Nadine; Smith, Shirley C.

    Two papers describe the roles of the Software Development Group (SDG) and the Software Review Center (SRC) at Drexel University. The first paper covers the primary role of the SDG, which is designed to assist Drexel faculty with the technical design and programming of courseware for the Apple Macintosh microcomputer; the relationship of the SDG…

  18. Software based controls module development

    Energy Technology Data Exchange (ETDEWEB)

    Graves, v.b.; kelley, g; welch, j.c.

    1999-12-10

    A project was initiated at the Oak Ridge Y-12 Plant to implement software geometric error compensation within a PC-based machine tool controller from Manufacturing Data Systems, Inc. This project may be the first in which this type of compensation system was implemented in a commercially available machine tool controller totally in software. Previous implementations typically required using an external computer and hardware to interface through the position feedback loop of the controller because direct access to the controller software was not available. The test-bed machine for this project was a 2-axis Excello 921 T-base lathe. A mathematical error model of the lathe was created using homogeneous transformation matrices to relate the positions of the machine's slides to each other and to a world reference system. Equations describing the effects of the geometric errors were derived from the model. A software architecture was developed to support geometric error compensation for machine tools with up to 3 linear axes. Rotary axes were not supported in this implementation, but the developed architecture would not preclude their support in the future. Specific implementations will be dependent upon the configuration of the machine tool. A laser measuring system from Automated Precision, Inc. was used to characterize the lathe's geometric errors as functions of axis position and direction of motion. Multiple data files generated by the laser system were combined into a single Error File that was read at system startup and used by the compensation system to provide real-time position adjustments to the axis servos. A Renishaw Ballbar was used to evaluate the compensation system. Static positioning tests were conducted in an attempt to observe improved positioning accuracy with the compensation system enabled. These tests gave inconsistent results due to the lathe's inability to position the tool repeatably. The development of the architecture and

  19. Teamwork in Distributed Agile Software Development

    OpenAIRE

    Gurram, Chaitanya; Bandi, Srinivas Goud

    2013-01-01

    Context: Distributed software development has become a most desired way of software development. Application of agile development methodologies in distributed environments has taken a new trend in developing software due to its benefits of improved communication and collaboration. Teamwork is an important concept that agile methodologies facilitate and is one of the potential determinants of team performance which was not focused in distributed agile software development. Objectives: This res...

  20. Formalizing the ISDF Software Development Methodology

    OpenAIRE

    Mihai Liviu DESPA

    2015-01-01

    The paper is aimed at depicting the ISDF software development methodology by emphasizing quality management and software development lifecycle. The ISDF methodology was built especially for innovative software development projects. The ISDF methodology was developed empirically by trial and error in the process of implementing multiple innovative projects. The research process began by analysing key concepts like innovation and software development and by settling the important dilemma of wha...

  1. Automating Object-Oriented Software Development Methods

    NARCIS (Netherlands)

    Tekinerdogan, B.; Saeki, Motoshi; Sunyé, Gerson; van den Broek, P.M.; Hruby, Pavel; Tekinerdogan, B.; van den Broek, P.M.; Saeki, M.; Hruby, P.; Sunye, G.

    2001-01-01

    Current software projects have generally to deal with producing and managing large and complex software products. It is generally believed that applying software development methods are useful in coping with this complexity and for supporting quality. As such numerous object-oriented software

  2. Imperfect Requirements in Software Development

    NARCIS (Netherlands)

    Noppen, J.A.R.; van den Broek, P.M.; Aksit, Mehmet; Sawyer, Pete; Paech, Barbara; Heymans, Patrick

    2007-01-01

    Requirement Specifications are very difficult to define. Due to lack of information and differences in interpretation, software engineers are faced with the necessity to redesign and iterate. This imperfection in software requirement specifications is commonly addressed by incremental design. In

  3. Crowdsourcing cloud-based software development

    CERN Document Server

    Li, Wei; Tsai, Wei-Tek; Wu, Wenjun

    2015-01-01

    This book presents the latest research on the software crowdsourcing approach to develop large and complex software in a cloud-based platform. It develops the fundamental principles, management organization and processes, and a cloud-based infrastructure to support this new software development approach. The book examines a variety of issues in software crowdsourcing processes, including software quality, costs, diversity of solutions, and the competitive nature of crowdsourcing processes. Furthermore, the book outlines a research roadmap of this emerging field, including all the key technology and management issues for the foreseeable future. Crowdsourcing, as demonstrated by Wikipedia and Facebook for online web applications, has shown promising results for a variety of applications, including healthcare, business, gold mining exploration, education, and software development. Software crowdsourcing is emerging as a promising solution to designing, developing and maintaining software. Preliminary software cr...

  4. caCORE version 3: Implementation of a model driven, service-oriented architecture for semantic interoperability

    Science.gov (United States)

    Komatsoulis, George A.; Warzel, Denise B.; Hartel, Frank W.; Shanbhag, Krishnakant; Chilukuri, Ram; Fragoso, Gilberto; de Coronado, Sherri; Reeves, Dianne M.; Hadfield, Jillaine B.; Ludet, Christophe; Covitz, Peter A.

    2008-01-01

    One of the requirements for a federated information system is interoperability, the ability of one computer system to access and use the resources of another system. This feature is particularly important in biomedical research systems, which need to coordinate a variety of disparate types of data. In order to meet this need, the National Cancer Institute Center for Bioinformatics (NCICB) has created the cancer Common Ontologic Representation Environment (caCORE), an interoperability infrastructure based on Model Driven Architecture. The caCORE infrastructure provides a mechanism to create interoperable biomedical information systems. Systems built using the caCORE paradigm address both aspects of interoperability: the ability to access data (syntactic interoperability) and understand the data once retrieved (semantic interoperability). This infrastructure consists of an integrated set of three major components: a controlled terminology service (Enterprise Vocabulary Services), a standards-based metadata repository (the cancer Data Standards Repository) and an information system with an Application Programming Interface (API) based on Domain Model Driven Architecture. This infrastructure is being leveraged to create a Semantic Service Oriented Architecture (SSOA) for cancer research by the National Cancer Institute’s cancer Biomedical Informatics Grid (caBIG™). PMID:17512259

  5. Application of agile methodologies in software development

    Directory of Open Access Journals (Sweden)

    Jovanović Aca D.

    2016-01-01

    Full Text Available The paper presents the potentials for the development of software using agile methodologies. Special consideration is devoted to the potentials and advantages of use of the Scrum methodology in the development of software and the relationship between the implementation of agile methodologies and the software development projects.

  6. YAM- A Framework for Rapid Software Development

    Science.gov (United States)

    Jain, Abhinandan; Biesiadecki, Jeffrey

    2006-01-01

    YAM is a software development framework with tools for facilitating the rapid development and integration of software in a concurrent software development environment. YAM provides solutions for thorny development challenges associated with software reuse, managing multiple software configurations, the development of software product-lines, multiple platform development and build management. YAM uses release-early, release-often development cycles to allow developers to incrementally integrate their changes into the system on a continual basis. YAM facilitates the creation and merging of branches to support the isolated development of immature software to avoid impacting the stability of the development effort. YAM uses modules and packages to organize and share software across multiple software products. It uses the concepts of link and work modules to reduce sandbox setup times even when the code-base is large. One side-benefit is the enforcement of a strong module-level encapsulation of a module s functionality and interface. This increases design transparency, system stability as well as software reuse. YAM is in use by several mid-size software development teams including ones developing mission-critical software.

  7. Four Phase Methodology for Developing Secure Software

    OpenAIRE

    Carlos Gonzalez-Flores; Ernesto Liñan-García

    2016-01-01

    A simple and robust approach for developing secure software. A Four Phase methodology consists in developing the non-secure software in phase one, and for the next three phases, one phase for each of the secure developing types (i.e. self-protected software, secure code transformation, and the secure shield). Our methodology requires first the determination and understanding of the type of security level needed for the software. The methodology proposes the use of several teams to accomplish ...

  8. Embedding Quality Function Deployment In Software Development ...

    African Journals Online (AJOL)

    Embedding Quality Function Deployment In Software Development: A Novel Approach. ... Therefore the software engineer has enormous task in engineering functional software that can work and be delivered on time..This paper focuses on how customers' voice can be heard in order to reduce development and ...

  9. Learning Human Aspects of Collaborative Software Development

    Science.gov (United States)

    Hadar, Irit; Sherman, Sofia; Hazzan, Orit

    2008-01-01

    Collaboration has become increasingly widespread in the software industry as systems have become larger and more complex, adding human complexity to the technological complexity already involved in developing software systems. To deal with this complexity, human-centric software development methods, such as Extreme Programming and other agile…

  10. Architectural viewpoints for global software development

    NARCIS (Netherlands)

    Yildiz, Bugra Mehmet; Tekinerdogan, B.

    Global Software Development (GSD) can be considered as the coordinated activity of software development that is not localized and central but geographically distributed. Designing an appropriate software architecture of a GSD system is important to meet the requirements for the communication,

  11. Modular Infrastructure for Rapid Flight Software Development

    Science.gov (United States)

    Pires, Craig

    2010-01-01

    This slide presentation reviews the use of modular infrastructure to assist in the development of flight software. A feature of this program is the use of model based approach for application unique software. A review of two programs that this approach was use on are: the development of software for Hover Test Vehicle (HTV), and Lunar Atmosphere and Dust Environment Experiment (LADEE).

  12. Software safety for every phase of software development.

    Science.gov (United States)

    Vogel, David A

    2006-01-01

    Where does risk management belong, at the beginning of a project or at the end? Many managers choose one or the other, or both. The correct answer is that risk management needs to be considered throughout the software development life cycle. When the risks include the safety of patients or the users of the software, the methods need to be more formal. This article will explain why, and then will provide the how and the how much.

  13. Developing Software for Corpus Research

    Science.gov (United States)

    Mason, Oliver

    2008-01-01

    Despite the central role of the computer in corpus research, programming is generally not seen as a core skill within corpus linguistics. As a consequence, limitations in software for text and corpus analysis slow down the progress of research while analysts often have to rely on third party software or even manual data analysis if no suitable…

  14. MEASURING PRODUCTIVITY OF SOFTWARE DEVELOPMENT TEAMS

    Directory of Open Access Journals (Sweden)

    Goparaju Purna Sudhakar

    2012-02-01

    Full Text Available This paper gives an exhaustive literature review of the techniques and models available tomeasure the productivity of software development teams. Definition of productivity, measuringindividual programmer’s productivity, and measuring software development team productivity arediscussed. Based on the literature review it was found that software productivity measurement canbe done using SLOC (Source Lines of Code, function points, use case points, object points, andfeature points. Secondary research findings indicate that the team size, response time, taskcomplexity, team climate and team cohesion have an impact on software development teamproductivity. List of factors affecting the software development team productivity are studied andreviewed.

  15. Strategies for successful software development risk management

    Directory of Open Access Journals (Sweden)

    Marija Boban

    2003-01-01

    Full Text Available Nowadays, software is becoming a major part of enterprise business. Software development is activity connected with advanced technology and high level of knowledge. Risks on software development projects must be successfully mitigated to produce successful software systems. Lack of a defined approach to risk management is one of the common causes for project failures. To improve project chances for success, this work investigates common risk impact areas to perceive a foundation that can be used to define a common approach to software risk management. Based on typical risk impact areas on software development projects, we propose three risk management strategies suitable for a broad area of enterprises and software development projects with different amounts of connected risks. Proposed strategies define activities that should be performed for successful risk management, the one that will enable software development projects to perceive risks as soon as possible and to solve problems connected with risk materialization. We also propose a risk-based approach to software development planning and risk management as attempts to address and retire the highest impact risks as early as possible in the development process. Proposed strategies should improve risk management on software development projects and help create a successful software solution.

  16. DEVELOPING SOFTWARE FOR CORPUS RESEARCH

    Directory of Open Access Journals (Sweden)

    Oliver Mason

    2008-06-01

    Full Text Available Despite the central role of the computer in corpus research, programming is generally not seen as a core skill within corpus linguistics. As a consequence, limitations in software for text and corpus analysis slow down the progress of research while analysts often have to rely on third party software or even manual data analysis if no suitable software is available. Apart from software itself, data formats are also of great importance for text processing. But again, many practitioners are not very aware of the options available to them, and thus idiosyncratic text formats often make sharing of resources difficult if not impossible. This article discusses some issues relating to both data and processing which should aid researchers to become more aware of the choices available to them when it comes to using computers in linguistic research. It also describes an easy way towards automating some common text processing tasks that can easily be acquired without knowledge of actual computer programming.

  17. Mechanisms of Component-Oriented Software Development.

    Science.gov (United States)

    Hofmann, Holger D.; Muench, Volker; Stynes, Jeanne

    1999-01-01

    Explains componentware, a new paradigm in software development that is based on the concept of a software component, a self-contained unit of software which can be distributed over large networks. Discusses the need for new, Internet-based search and retrieval mechanisms, and the architectural requirements and mechanisms of componentware.…

  18. Locking Down the Software Development Environment

    Science.gov (United States)

    2014-12-01

    software is “checked-in.” Another limitation of inspections is that the Agile method- ology recommends formal inspections and Scrum uses pair...Agile Software Development with Scrum , Upper Saddle River, NJ: Prentice Hall, 2002, pp. 1-158. 6. “SAMATE - Software Assurance Metrics and Tool

  19. Teaching Agile Software Development: A Case Study

    Science.gov (United States)

    Devedzic, V.; Milenkovic, S. R.

    2011-01-01

    This paper describes the authors' experience of teaching agile software development to students of computer science, software engineering, and other related disciplines, and comments on the implications of this and the lessons learned. It is based on the authors' eight years of experience in teaching agile software methodologies to various groups…

  20. Ethics in computer software design and development

    Science.gov (United States)

    Alan J. Thomson; Daniel L. Schmoldt

    2001-01-01

    Over the past 20 years, computer software has become integral and commonplace for operational and management tasks throughout agricultural and natural resource disciplines. During this software infusion, however, little thought has been afforded human impacts, both good and bad. This paper examines current ethical issues of software system design and development in...

  1. Effective Software Engineering Leadership for Development Programs

    Science.gov (United States)

    Cagle West, Marsha

    2010-01-01

    Software is a critical component of systems ranging from simple consumer appliances to complex health, nuclear, and flight control systems. The development of quality, reliable, and effective software solutions requires the incorporation of effective software engineering processes and leadership. Processes, approaches, and methodologies for…

  2. Design for software a playbook for developers

    CERN Document Server

    Klimczak, Erik

    2013-01-01

    A unique resource to help software developers create a desirable user experience Today, top-flight software must feature a desirable user experience. This one-of-a-kind book creates a design process specifically for software, making it easy for developers who lack design background to create that compelling user experience. Appealing to both tech-savvy designers and creative-minded technologists, it establishes a hybrid discipline that will produce first-rate software. Illustrated in full color, it shows how to plan and visualize the design to create software that works on every l

  3. A Software Development Platform for Mechatronic Systems

    DEFF Research Database (Denmark)

    Guan, Wei

    Software has become increasingly determinative for development of mechatronic systems, which underscores the importance of demands for shortened time-to-market, increased productivity, higher quality, and improved dependability. As the complexity of systems is dramatically increasing, these demands...... present a challenge to the practitioners who adopt conventional software development approach. An effective approach towards industrial production of software for mechatronic systems is needed. This approach requires a disciplined engineering process that encompasses model-driven engineering and component......-based software engineering, whereby we enable incremental software development using component models to address the essential design issues of real-time embedded systems. To this end, this dissertation presents a software development platform that provides an incremental model-driven development process based...

  4. TMT approach to observatory software development process

    Science.gov (United States)

    Buur, Hanne; Subramaniam, Annapurni; Gillies, Kim; Dumas, Christophe; Bhatia, Ravinder

    2016-07-01

    The purpose of the Observatory Software System (OSW) is to integrate all software and hardware components of the Thirty Meter Telescope (TMT) to enable observations and data capture; thus it is a complex software system that is defined by four principal software subsystems: Common Software (CSW), Executive Software (ESW), Data Management System (DMS) and Science Operations Support System (SOSS), all of which have interdependencies with the observatory control systems and data acquisition systems. Therefore, the software development process and plan must consider dependencies to other subsystems, manage architecture, interfaces and design, manage software scope and complexity, and standardize and optimize use of resources and tools. Additionally, the TMT Observatory Software will largely be developed in India through TMT's workshare relationship with the India TMT Coordination Centre (ITCC) and use of Indian software industry vendors, which adds complexity and challenges to the software development process, communication and coordination of activities and priorities as well as measuring performance and managing quality and risk. The software project management challenge for the TMT OSW is thus a multi-faceted technical, managerial, communications and interpersonal relations challenge. The approach TMT is using to manage this multifaceted challenge is a combination of establishing an effective geographically distributed software team (Integrated Product Team) with strong project management and technical leadership provided by the TMT Project Office (PO) and the ITCC partner to manage plans, process, performance, risk and quality, and to facilitate effective communications; establishing an effective cross-functional software management team composed of stakeholders, OSW leadership and ITCC leadership to manage dependencies and software release plans, technical complexities and change to approved interfaces, architecture, design and tool set, and to facilitate

  5. Factors that motivate software developers in Nigerian's software ...

    African Journals Online (AJOL)

    Motivation is a strong tool in the hand of managers and leaders. This tool can only be utilized when the factors that motivate subordinates are known and built into the leadership process. This study investigated the factors that motivate software developers in Nigeria with aid of questionnaires and informal interaction with ...

  6. Estimating software development project size, using probabilistic ...

    African Journals Online (AJOL)

    This paper describes the quantitative process of managing the size of software development projects by Purchasers (Clients) and Vendors (Development Houses) where there are no historical databases. Probabilistic approach was used to estimate the software project size, using the data collected when we developed a ...

  7. Automated Estimation Of Software-Development Costs

    Science.gov (United States)

    Roush, George B.; Reini, William

    1993-01-01

    COSTMODL is automated software development-estimation tool. Yields significant reduction in risk of cost overruns and failed projects. Accepts description of software product developed and computes estimates of effort required to produce it, calendar schedule required, and distribution of effort and staffing as function of defined set of development life-cycle phases. Written for IBM PC(R)-compatible computers.

  8. Comparative Study on Agile software development methodologies

    OpenAIRE

    Moniruzzaman, A. B. M.; Hossain, Dr Syed Akhter

    2013-01-01

    Today-s business environment is very much dynamic, and organisations are constantly changing their software requirements to adjust with new environment. They also demand for fast delivery of software products as well as for accepting changing requirements. In this aspect, traditional plan-driven developments fail to meet up these requirements. Though traditional software development methodologies, such as life cycle-based structured and object oriented approaches, continue to dominate the sys...

  9. Formalizing the ISDF Software Development Methodology

    Directory of Open Access Journals (Sweden)

    Mihai Liviu DESPA

    2015-01-01

    Full Text Available The paper is aimed at depicting the ISDF software development methodology by emphasizing quality management and software development lifecycle. The ISDF methodology was built especially for innovative software development projects. The ISDF methodology was developed empirically by trial and error in the process of implementing multiple innovative projects. The research process began by analysing key concepts like innovation and software development and by settling the important dilemma of what makes a web application innovative. Innovation in software development is presented from the end-user, project owner and project manager’s point of view. The main components of a software development methodology are identified. Thus a software development methodology should account for people, roles, skills, teams, tools, techniques, processes, activities, standards, quality measuring tools, and team values. Current software development models are presented and briefly analysed. The need for a dedicated innovation oriented software development methodology is emphasized by highlighting shortcomings of current software development methodologies when tackling innovation. The ISDF methodology is presented in the context of developing an actual application. The ALHPA application is used as a case study for emphasizing the characteristics of the ISDF methodology. The development life cycle of the ISDF methodology includes research, planning, prototyping, design, development, testing, setup and maintenance. Artefacts generated by the ISDF methodology are presented. Quality is managed in the ISDF methodology by assessing compliance, usability, reliability, repeatability, availability and security. In order to properly asses each quality component a dedicated indicator is built. A template for interpreting each indicator is provided. Conclusions are formulated and new related research topics are submitted for debate.

  10. Secure Software Development : Identification of Security Activities and Their Integration in Software Development Lifecycle

    OpenAIRE

    Ahmed, Syed Rizwan

    2007-01-01

    Today’s software is more vulnerable to attacks due to increase in complexity, connectivity and extensibility. Securing software is usually considered as a post development activity and not much importance is given to it during the development of software. However the amount of loss that organizations have incurred over the years due to security flaws in software has invited researchers to find out better ways of securing software. In the light of research done by many researchers, this thesis...

  11. Econometric software development: past, present and future

    NARCIS (Netherlands)

    Ooms, M.; Doornik, J.A.

    2006-01-01

    We give a short international history of econometric software development, with an emphasis on the origin of the main existing econometric packages. We provide a Dutch perspective on this development. We identify the characteristics of econometric software in comparison with mathematical and

  12. Developing the E-Scape Software System

    Science.gov (United States)

    Derrick, Karim

    2012-01-01

    Most innovations have contextual pre-cursors that prompt new ways of thinking and in their turn help to give form to the new reality. This was the case with the e-scape software development process. The origins of the system existed in software components and ideas that we had developed through previous projects, but the ultimate direction we took…

  13. Software Development Framework For Electronic Land Titles ...

    African Journals Online (AJOL)

    We hereby introduce a software development framework for electronically administering the records of Land Titles. The model is computer dependent, and the graphical presentations in the designs will simplify the job of software developers in the process of systems conversion from the existing cumbersome, disorganized ...

  14. Software Development Management: Empirical and Analytical Perspectives

    Science.gov (United States)

    Kang, Keumseok

    2011-01-01

    Managing software development is a very complex activity because it must deal with people, organizations, technologies, and business processes. My dissertation consists of three studies that examine software development management from various perspectives. The first study empirically investigates the impacts of prior experience with similar…

  15. Automating Software Development Process using Fuzzy Logic

    NARCIS (Netherlands)

    Marcelloni, Francesco; Aksit, Mehmet; Damiani, Ernesto; Jain, Lakhmi C.; Madravio, Mauro

    2004-01-01

    In this chapter, we aim to highlight how fuzzy logic can be a valid expressive tool to manage the software development process. We characterize a software development method in terms of two major components: artifact types and methodological rules. Classes, attributes, operations, and inheritance

  16. XP in a Small Software Development Business

    DEFF Research Database (Denmark)

    Babb, Jeffry; Hoda, Rashina; Nørbjerg, Jacob

    2014-01-01

    While small software development shops have trended towards the adoption of Agile methods, local conditions and high iteration pressure typically cause adaptations and appropriations of Agile methods. This paper shares evidence from a study concerning how a small software development company adopts...

  17. Workflow-Based Software Development Environment

    Science.gov (United States)

    Izygon, Michel E.

    2013-01-01

    The Software Developer's Assistant (SDA) helps software teams more efficiently and accurately conduct or execute software processes associated with NASA mission-critical software. SDA is a process enactment platform that guides software teams through project-specific standards, processes, and procedures. Software projects are decomposed into all of their required process steps or tasks, and each task is assigned to project personnel. SDA orchestrates the performance of work required to complete all process tasks in the correct sequence. The software then notifies team members when they may begin work on their assigned tasks and provides the tools, instructions, reference materials, and supportive artifacts that allow users to compliantly perform the work. A combination of technology components captures and enacts any software process use to support the software lifecycle. It creates an adaptive workflow environment that can be modified as needed. SDA achieves software process automation through a Business Process Management (BPM) approach to managing the software lifecycle for mission-critical projects. It contains five main parts: TieFlow (workflow engine), Business Rules (rules to alter process flow), Common Repository (storage for project artifacts, versions, history, schedules, etc.), SOA (interface to allow internal, GFE, or COTS tools integration), and the Web Portal Interface (collaborative web environment

  18. Firing Room Remote Application Software Development

    Science.gov (United States)

    Liu, Kan

    2015-01-01

    The Engineering and Technology Directorate (NE) at National Aeronautics and Space Administration (NASA) Kennedy Space Center (KSC) is designing a new command and control system for the checkout and launch of Space Launch System (SLS) and future rockets. The purposes of the semester long internship as a remote application software developer include the design, development, integration, and verification of the software and hardware in the firing rooms, in particular with the Mobile Launcher (ML) Launch Accessories (LACC) subsystem. In addition, a software test verification procedure document was created to verify and checkout LACC software for Launch Equipment Test Facility (LETF) testing.

  19. Assessment of best practice of software development in developing ...

    African Journals Online (AJOL)

    Software development in most developing nations such as Nigeria were categorised as non standard while these nations still request for software from developed nations. These call for the assessment of the best practice and the way forward. ICT firms that specialized in software development were involved using ...

  20. Workflow Based Software Development Environment Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The goal of this proposed research is to investigate and develop a workflow based tool, the Software Developers Assistant, to facilitate the collaboration between...

  1. Software Process Models and Analysis on Failure of Software Development Projects

    OpenAIRE

    Kaur, Rupinder; Sengupta, Jyotsna

    2013-01-01

    The software process model consists of a set of activities undertaken to design, develop and maintain software systems. A variety of software process models have been designed to structure, describe and prescribe the software development process. The software process models play a very important role in software development, so it forms the core of the software product. Software project failure is often devastating to an organization. Schedule slips, buggy releases and missing features can me...

  2. Software development an open source approach

    CERN Document Server

    Tucker, Allen; de Silva, Chamindra

    2011-01-01

    Overview and Motivation Software Free and Open Source Software (FOSS)Two Case Studies Working with a Project Team Key FOSS Activities Client-Oriented vs. Community-Oriented Projects Working on a Client-Oriented Project Joining a Community-Oriented Project Using Project Tools Collaboration Tools Code Management Tools Run-Time System ConstraintsSoftware Architecture Architectural Patterns Layers, Cohesion, and Coupling Security Concurrency, Race Conditions, and DeadlocksWorking with Code Bad Smells and Metrics Refactoring Testing Debugging Extending the Software for a New ProjectDeveloping the D

  3. Estimating The Cost Of Developing Software

    Science.gov (United States)

    Tausworthe, Robert C.

    1991-01-01

    Software Cost Estimation Model program, SOFTCOST, developed to provide consistent automated resource-and-schedule mathematical model more formalized than guesswork model. Combines several software-cost models found in open literature into one comprehensive set of algorithms compensating for nearly 50 implementation factors relative to size of task, inherited baseline, organizational and system environment, and difficulty of task. Produces mean and variance estimates of software size, implementation productivity, recommended staff level, probable duration, amount of computer resources required, and amount and cost of software documentation. Written in Microsoft BASIC.

  4. The Social Dynamics of Software Development

    NARCIS (Netherlands)

    Heiskanen, A.; Newman, M.; Simila, J.

    2000-01-01

    A variety of experiences in software development processes between a public sector organisation and several software vendors over a decade-long period are described and interpreted. Three information systems histories are presented as case examples and their analysis is based on detailed insider

  5. Interactive Programming Support for Secure Software Development

    Science.gov (United States)

    Xie, Jing

    2012-01-01

    Software vulnerabilities originating from insecure code are one of the leading causes of security problems people face today. Unfortunately, many software developers have not been adequately trained in writing secure programs that are resistant from attacks violating program confidentiality, integrity, and availability, a style of programming…

  6. Strategies for Developing China's Software Industry

    Directory of Open Access Journals (Sweden)

    Mingzhi Li

    2003-01-01

    Full Text Available The software industry is deemed an ideal target for a developing country to integrate into the world information and communications technology (ICT market. On the one hand the industry is labor intensive, and the developing countries have a large labor surplus; on the other hand, it is a worldwide trend for developed countries to outsource a vast amount of low-end, software-related tasks to the low-cost countries and regions, which fits into some developing countries’ caliber nicely. India has often been cited as the role model for a developing country to tap into the world software market for its continuous success in the software export sector. In comparison, China’s software industry is still negligible in the world despite its sustained high economic growth rate since the economic reform took off in the late 1970s.This paper aims at examining strategies for developing China’s software industry. We use India as a reference because of the similarities of the two countries’ stages of economic development and the clear divergence in their ICT structures and development paths. Although the language barrier has often been singled out as the major obstacle for China’s software exports, we believe the major reasons for its underdevelopment can be ascribed to the following factors. On the national level, the government attention has been skewed toward the hardware sector in the ICT industry, and there is no clear national vision for the strategic direction for the software industry.On the industry and ªrm level, software development has been regarded as the art of individual creativity rather than an engineering process. As a result, the importance of quality and standards, the two important critical factors in software development, have been largely neglected. Perhaps an even more fundamental factor lies in the deeply rooted notion that software is an attachment to the hardware and should be a free product. The lack of intellectual

  7. Designing, developing, and implementing software ecosystems

    DEFF Research Database (Denmark)

    Manikas, Konstantinos; Hämäläinen, Mervi; Tyrväinen, Pasi

    2017-01-01

    The notion of software ecosystems has been popular both in research and industry for more than a decade, but how software ecosystems are created still remains unclear. This becomes more of a challenge if one examines the "creation'' of ecosystems that have high probability in surviving...... in the future, i.e. with respect to ecosystem health. In this paper, we focus on the creation of software ecosystems and propose a process for designing, developing, and establishing software ecosystems based on three basic steps and a set of activities for each step. We note that software ecosystem research...... infrastructure (platform). We identify that ecosystems can emerge out of two more distinct types of environments and thus the design should be based on the characteristics of this categorization. Moreover, we follow the approach that design, development, and establishment are not three distinct phases but rather...

  8. Reconfigurability Function Deployment in Software Development

    Directory of Open Access Journals (Sweden)

    Stelian BRAD

    2011-01-01

    Full Text Available In the forthcoming highly dynamic and complex business environment high-speed and cost-effective development of software applications for targeting a precise, unique and momentary set of requirements (no more-no less associated to a customized business case will bring sig-nificant benefits both for producers and users. This requires a life cycle change-oriented ap-proach in software development. In this respect, designing software with intrinsic evolutionary resources for reconfiguration represents the sound approach. A methodology for concurrent deployment of reconfigurability characteristics in software applications is introduced in this paper. Its potential is exemplified in a case study dealing with web-based software tools to support systematic product innovation projects.

  9. DEVELOPING EVALUATION INSTRUMENT FOR MATHEMATICS EDUCATIONAL SOFTWARE

    Directory of Open Access Journals (Sweden)

    Wahyu Setyaningrum

    2012-02-01

    Full Text Available The rapid increase and availability of mathematics software, either for classroom or individual learning activities, presents a challenge for teachers. It has been argued that many products are limited in quality. Some of the more commonly used software products have been criticized for poor content, activities which fail to address some learning issues, poor graphics presentation, inadequate documentation, and other technical problems. The challenge for schools is to ensure that the educational software used in classrooms is appropriate and effective in supporting intended outcomes and goals. This paper aimed to develop instrument for evaluating mathematics educational software in order to help teachers in selecting the appropriate software. The instrument considers the notion of educational including content, teaching and learning skill, interaction, and feedback and error correction; and technical aspects of educational software including design, clarity, assessment and documentation, cost and hardware and software interdependence. The instrument use a checklist approach, the easier and effective methods in assessing the quality of educational software, thus the user needs to put tick in each criteria. The criteria in this instrument are adapted and extended from standard evaluation instrument in several references.   Keywords: mathematics educational software, educational aspect, technical aspect.

  10. Reducing Software Failures: addressing the ethical risks of the software development lifecycle

    OpenAIRE

    Don Gotterbam

    2002-01-01

    A narrow approach to risk analysis and understanding the scope of a software project has contributed to significant software failures. A process is presented which expands the concept of software risk to include social, professional, and ethical risks that lead to software failure. Using an expanded risk analysis will enlarge the project scope considered by software developers. This process also is incorporated into a software development life cycle. A tool to develop Software Development Imp...

  11. MEASUREMENT PROCESS OF SOFTWARE DEVELOPMENT PROJECTS FOR SUPPORTING STRATEGIC BUSINESS OBJECTIVES IN SOFTWARE DEVELOPING COMPANIES

    Directory of Open Access Journals (Sweden)

    Sandra Lais Pedroso

    2013-08-01

    Full Text Available Software developing companies work in a competitive market and are often challenged to make business decisions with impact on competitiveness. Models accessing maturity for software development processes quality, such as CMMI and MPS-BR, comprise process measurements systems (PMS. However, these models are not necessarily suitable to support business decisions, neither to achieve strategic goals. The objective of this work is to analyze how the PMS of software development projects could support business strategies for software developing companies. Results taken from this work show that PMS results from maturity models for software processes can be suited to help evaluating operating capabilities and supporting strategic business decisions.

  12. Development of Software Correlator for KJJVC

    Directory of Open Access Journals (Sweden)

    J. H. Yeom

    2009-12-01

    Full Text Available Korea-Japan Joint VLBI Correlator (KJJVC is being developed by collaborating KASI (Korea Astronomy and Space Science Institute, Korea, and NAOJ(National Observatory of Japan, Japan. In early 2010, KJJVC will work in normal operation. In this study, we developed the software correlator which is based on VCS (VLBI Correlation Subsystem hardware specification as the core component of KJJVC. The main specification of software correlator is 8 Gbps, 8192 output channels, and 262,144-points FFT (Fast Fourier Transform function same as VCS. And the functional algorithm which is same as specification of VCS and arithmetic register are adopted in this software correlator. To verify the performance of developed software correlator, the correlation experiments were carried out using the spectral line and continuum sources which were observed by VERA (VLBI Exploration of Radio Astrometry, NAOJ. And the experimental results were compared to the output of Mitaka FX correlator by referring spectrum shape, phase rate, and fringe detection and so on. Through the experimental results, we confirmed that the correlation results of software correlator are the same as Mitaka FX correlator and verified the effectiveness of it. In future, we expect that the developed software correlator will be the possible software correlator of KVN (Korean VLBI Network with KJJVC by introducing the correlation post-processing and modifying the user interface as like GUI (Graphic User Interface.

  13. A systematic approach for component-based software development

    NARCIS (Netherlands)

    Guareis de farias, Cléver; van Sinderen, Marten J.; Ferreira Pires, Luis

    2000-01-01

    Component-based software development enables the construction of software artefacts by assembling prefabricated, configurable and independently evolving building blocks, called software components. This paper presents an approach for the development of component-based software artefacts. This

  14. Software development on the SAP HANA platform

    CERN Document Server

    Walker, Mark

    2013-01-01

    Software Development on the SAP HANA Platform is a general tutorial guide to SAP HANA.This book is written for beginners to the SAP HANA platform. No knowledge of SAP HANA is necessary to start using this book.

  15. Concept Development for Software Health Management

    Science.gov (United States)

    Riecks, Jung; Storm, Walter; Hollingsworth, Mark

    2011-01-01

    This report documents the work performed by Lockheed Martin Aeronautics (LM Aero) under NASA contract NNL06AA08B, delivery order NNL07AB06T. The Concept Development for Software Health Management (CDSHM) program was a NASA funded effort sponsored by the Integrated Vehicle Health Management Project, one of the four pillars of the NASA Aviation Safety Program. The CD-SHM program focused on defining a structured approach to software health management (SHM) through the development of a comprehensive failure taxonomy that is used to characterize the fundamental failure modes of safety-critical software.

  16. An Interactive and Automated Software Development Environment.

    Science.gov (United States)

    1982-12-01

    a specific and narrow domain of application. This statement is substantiated by a noted expert on the subject of software development environments...terms much closer to our own english langauge . The other techniques analyzed for possible use in defining the "As-Is" model of the software development...tool for the SDW. Furthermore, with the abundance of suc- tools in the public domain or under the propriety of the U.S. Air Force, AFIT should not have

  17. Developing high-quality educational software.

    Science.gov (United States)

    Johnson, Lynn A; Schleyer, Titus K L

    2003-11-01

    The development of effective educational software requires a systematic process executed by a skilled development team. This article describes the core skills required of the development team members for the six phases of successful educational software development. During analysis, the foundation of product development is laid including defining the audience and program goals, determining hardware and software constraints, identifying content resources, and developing management tools. The design phase creates the specifications that describe the user interface, the sequence of events, and the details of the content to be displayed. During development, the pieces of the educational program are assembled. Graphics and other media are created, video and audio scripts written and recorded, the program code created, and support documentation produced. Extensive testing by the development team (alpha testing) and with students (beta testing) is conducted. Carefully planned implementation is most likely to result in a flawless delivery of the educational software and maintenance ensures up-to-date content and software. Due to the importance of the sixth phase, evaluation, we have written a companion article on it that follows this one. The development of a CD-ROM product is described including the development team, a detailed description of the development phases, and the lessons learned from the project.

  18. Using Game Development to Teach Software Architecture

    Directory of Open Access Journals (Sweden)

    Alf Inge Wang

    2011-01-01

    Full Text Available This paper describes a case study of how a game project using the XNA Game Studio from Microsoft was implemented in a software architecture course. In this project, university students have to construct and design a type of software architecture, evaluate the architecture, implement an application based on the architecture, and test this implementation. In previous years, the domain of the software architecture project has been a robot controller for navigating a maze. Robot controller was chosen as the domain for the project, as there exist several papers and descriptions on reference architectures for managing mobile robots. This paper describes the changes we had to make to introduce an XNA game development project to the software architecture course, and our experiences from running a software architecture project focusing on game development and XNA. The experiences described in this paper are based on feedback from the course staff, the project reports of the students, and a mandatory course evaluation. The evaluation shows among other things that the majority of the students preferred the game project to the robot project, that XNA was considered to be suitable platform for a software architecture project, that the students found it useful to learn XNA and C#, and that some students were carried away when developing the game in the software architecture project.

  19. Translocality in Global Software Development

    DEFF Research Database (Denmark)

    Bjørn, Pernille; Søderberg, Anne-Marie; Krishna, S.

    2017-01-01

    What happens when agile methods are introduced in global outsourcing set-ups? Agile methods are designed to empower IT developers in decision-making through self-managing collocated teams. We studied how agile methods were introduced into global outsourcing from the Indian IT vendor’s perspective....... We explored how agile processes in global outsourcing impacts work conditions of the Indian IT developers, and were surprised to find that agile methodologies, even after 3 years of implementation, created a stressful and inflexible work environment negatively impacting their personal lives. Many...... of the negative aspects of work, which agile methodologies were developed to reduce, were evident in the global agile outsourcing set-up. We propose translocality to repudiate the dichotomy of global/local reminding us that methodologies and technologies must be understood as immediately localized and situated...

  20. Usability Evaluation Method for Agile Software Development

    Directory of Open Access Journals (Sweden)

    Saad Masood Butt

    2015-02-01

    Full Text Available Agile methods are the best fit for tremendously growing software industry due to its flexible and dynamic nature. But the software developed using agile methods do meet the usability standards? To answer this question we can see that majority of agile software development projects currently involve interactive user interface designs, which can only be possible by following User Centered Design (UCD in agile methods. The question here is, how to integrate UCD with agile models. Both Agile models and UCD are iterative in nature but agile models focus on coding and development of software; whereas, UCD focuses on user interface of the software. Similarly, both of them have testing features where the agile model involves automated tested code while UCD involves an expert or a user to test the user interface. In this paper, a new agile usability model is proposed and the evaluation is of the proposed model is presented by practically implementing it in three real life projects. . Key results from these projects clearly show: the proposed agile model incorporates usability evaluation methods, improves the relationship between usability experts to work with agile software experts; in addition, allows agile developers to incorporate the result from UCD into subsequent interactions.

  1. Small is beautiful: customer driven software development

    DEFF Research Database (Denmark)

    Hansen, Henrik A.B.; Koch, Christian; Pleman, Allan

    1999-01-01

    to different benefits and short comings for the collaborative companies depending on the specific context. In this paper we discuss three types of networks: collaboration between users and producer(s), collaboration between a software house and third party suppliers, and a collaboration between academics......Summary form only given. The topics addressed in this paper is how networking can be used as a way for small software houses to enhances their innovative capabilities by using different kinds of collaboration in order to overcome the problems of lacking knowledge as well as resources in order...... to develop their software. In small software houses operating in markets with complex products such as ERP (enterprise resource planning) systems, networking is necessary in order to gain the needed knowledge and resources in the production development process. Network is not seen as a magic word but leads...

  2. Advanced Software Development Workstation Project, phase 3

    Science.gov (United States)

    1991-01-01

    ACCESS provides a generic capability to develop software information system applications which are explicitly intended to facilitate software reuse. In addition, it provides the capability to retrofit existing large applications with a user friendly front end for preparation of input streams in a way that will reduce required training time, improve the productivity even of experienced users, and increase accuracy. Current and past work shows that ACCESS will be scalable to much larger object bases.

  3. Object-Oriented Software Development Environments

    DEFF Research Database (Denmark)

    The book "Object-Oriented Environments - The Mjølner Approach" presents the collective results of the Mjølner Project. The project was set up to work on the widely recognized problems of developing, maintaining and understanding large software systems. The starting point was to use object...... and realizations User interfaces for environments and realizations Grammar-based software architectures Structure-based editing Language implementation, runtime organization, garbage collection Incremental compilation techniques...

  4. A MAINTAINABILITY ENHANCEMENT PROCEDURE FOR REDUCING AGILE SOFTWARE DEVELOPMENT RISK

    OpenAIRE

    Sen-Tarng Lai

    2015-01-01

    In mobile communications age, environment changes rapidly, the requirements change is the software project must face challenge. Able to overcome the impact of requirements change, software development risk can be effectively decreased. In order to reduce software requirements change risk, the paper investigates the major software development models and recommends the adaptable requirements change software development. Agile development applied the Iterative and Incremental Develop...

  5. Automated software development using the HALDEN prover

    Energy Technology Data Exchange (ETDEWEB)

    Sivertsen, Terje

    2002-08-15

    This report presents the HALDEN (Halden Algebraic Language and Design ENvironment) Prover and provides a guide to its application in automated software development. A frame- work for formal software development based on the algebraic specification language HALDEN ASL, the HALDEN Prover supports many different tasks related to formal software development, including automated theorem proving, transformation of specifications, translation of specifications into Prolog, generation of formatted text documents, integration of Petri nets and algebraic specifications, etc. Formal methods and automated code generation constitute the basis of the automation-based paradigm, which represents a promising approach to ensuring traceability and correct implementation of requirements. Formal development with the HALDEN Prover can be carried out in a manner that reflects this paradigm. Accordingly, formal specifications are first developed from informal requirements, then elaborated into detailed formal descriptions by repeated validation, which are finally translated into some conventional programming language. Integrating formal methods with automated software development, the HALDEN Prover supports a methodology where formality is utilized in the automation of the software process. This is reflected in the report, which gives guidance to the tool support provided for the different elements of the process, including specification,animation, walk-through, automated theorem proving, translation, and documentation. The present report is complemented by HWR-646, which covers transformation and combination of specifications, and the Petri net support tool HALDEN CE. (Author)

  6. Software development: do good manners matter?

    Directory of Open Access Journals (Sweden)

    Giuseppe Destefanis

    2016-07-01

    Full Text Available A successful software project is the result of a complex process involving, above all, people. Developers are the key factors for the success of a software development process, not merely as executors of tasks, but as protagonists and core of the whole development process. This paper investigates social aspects among developers working on software projects developed with the support of Agile tools. We studied 22 open-source software projects developed using the Agile board of the JIRA repository. All comments committed by developers involved in the projects were analyzed and we explored whether the politeness of comments affected the number of developers involved and the time required to fix any given issue. Our results showed that the level of politeness in the communication process among developers does have an effect on the time required to fix issues and, in the majority of the analysed projects, it had a positive correlation with attractiveness of the project to both active and potential developers. The more polite developers were, the less time it took to fix an issue.

  7. Development of the Lymphoma Enterprise Architecture Database: A caBIG(tm) Silver level compliant System

    Science.gov (United States)

    Huang, Taoying; Shenoy, Pareen J.; Sinha, Rajni; Graiser, Michael; Bumpers, Kevin W.; Flowers, Christopher R.

    2009-01-01

    Lymphomas are the fifth most common cancer in United States with numerous histological subtypes. Integrating existing clinical information on lymphoma patients provides a platform for understanding biological variability in presentation and treatment response and aids development of novel therapies. We developed a cancer Biomedical Informatics Grid™ (caBIG™) Silver level compliant lymphoma database, called the Lymphoma Enterprise Architecture Data-system™ (LEAD™), which integrates the pathology, pharmacy, laboratory, cancer registry, clinical trials, and clinical data from institutional databases. We utilized the Cancer Common Ontological Representation Environment Software Development Kit (caCORE SDK) provided by National Cancer Institute’s Center for Bioinformatics to establish the LEAD™ platform for data management. The caCORE SDK generated system utilizes an n-tier architecture with open Application Programming Interfaces, controlled vocabularies, and registered metadata to achieve semantic integration across multiple cancer databases. We demonstrated that the data elements and structures within LEAD™ could be used to manage clinical research data from phase 1 clinical trials, cohort studies, and registry data from the Surveillance Epidemiology and End Results database. This work provides a clear example of how semantic technologies from caBIG™ can be applied to support a wide range of clinical and research tasks, and integrate data from disparate systems into a single architecture. This illustrates the central importance of caBIG™ to the management of clinical and biological data. PMID:19492074

  8. Development of the Lymphoma Enterprise Architecture Database: a caBIG Silver level compliant system.

    Science.gov (United States)

    Huang, Taoying; Shenoy, Pareen J; Sinha, Rajni; Graiser, Michael; Bumpers, Kevin W; Flowers, Christopher R

    2009-04-03

    Lymphomas are the fifth most common cancer in United States with numerous histological subtypes. Integrating existing clinical information on lymphoma patients provides a platform for understanding biological variability in presentation and treatment response and aids development of novel therapies. We developed a cancer Biomedical Informatics Grid (caBIG) Silver level compliant lymphoma database, called the Lymphoma Enterprise Architecture Data-system (LEAD), which integrates the pathology, pharmacy, laboratory, cancer registry, clinical trials, and clinical data from institutional databases. We utilized the Cancer Common Ontological Representation Environment Software Development Kit (caCORE SDK) provided by National Cancer Institute's Center for Bioinformatics to establish the LEAD platform for data management. The caCORE SDK generated system utilizes an n-tier architecture with open Application Programming Interfaces, controlled vocabularies, and registered metadata to achieve semantic integration across multiple cancer databases. We demonstrated that the data elements and structures within LEAD could be used to manage clinical research data from phase 1 clinical trials, cohort studies, and registry data from the Surveillance Epidemiology and End Results database. This work provides a clear example of how semantic technologies from caBIG can be applied to support a wide range of clinical and research tasks, and integrate data from disparate systems into a single architecture. This illustrates the central importance of caBIG to the management of clinical and biological data.

  9. Development of the Lymphoma Enterprise Architecture Database: A caBIG(TM Silver Level Compliant System

    Directory of Open Access Journals (Sweden)

    Taoying Huang

    2009-01-01

    Full Text Available Lymphomas are the fifth most common cancer in United States with numerous histological subtypes. Integrating existing clinical information on lymphoma patients provides a platform for understanding biological variability in presentation and treatment response and aids development of novel therapies. We developed a cancer Biomedical Informatics Grid™ (caBIG™ Silver level compliant lymphoma database, called the Lymphoma Enterprise Architecture Data-system™ (LEAD™, which integrates the pathology, pharmacy, laboratory, cancer registry, clinical trials, and clinical data from institutional databases. We utilized the Cancer Common Ontological Representation Environment Software Development Kit (caCORE SDK provided by National Cancer Institute’s Center for Bioinformatics to establish the LEAD™ platform for data management. The caCORE SDK generated system utilizes an n-tier architecture with open Application Programming Interfaces, controlled vocabularies, and registered metadata to achieve semantic integration across multiple cancer databases. We demonstrated that the data elements and structures within LEAD™ could be used to manage clinical research data from phase 1 clinical trials, cohort studies, and registry data from the Surveillance Epidemiology and End Results database. This work provides a clear example of how semantic technologies from caBIG™ can be applied to support a wide range of clinical and research tasks, and integrate data from disparate systems into a single architecture. This illustrates the central importance of caBIG™ to the management of clinical and biological data.

  10. Development of the Lymphoma Enterprise Architecture Database: A caBIG(TM Silver Level Compliant System

    Directory of Open Access Journals (Sweden)

    Taoying Huang

    2009-04-01

    Full Text Available Lymphomas are the fifth most common cancer in United States with numerous histological subtypes. Integrating existing clinical information on lymphoma patients provides a platform for understanding biological variability in presentation and treatment response and aids development of novel therapies. We developed a cancer Biomedical Informatics Grid™ (caBIG™ Silver level compliant lymphoma database, called the Lymphoma Enterprise Architecture Data-system™ (LEAD™, which integrates the pathology, pharmacy, laboratory, cancer registry, clinical trials, and clinical data from institutional databases. We utilized the Cancer Common Ontological Representation Environment Software Development Kit (caCORE SDK provided by National Cancer Institute’s Center for Bioinformatics to establish the LEAD™ platform for data management. The caCORE SDK generated system utilizes an n-tier architecture with open Application Programming Interfaces, controlled vocabularies, and registered metadata to achieve semantic integration across multiple cancer databases. We demonstrated that the data elements and structures within LEAD™ could be used to manage clinical research data from phase 1 clinical trials, cohort studies, and registry data from the Surveillance Epidemiology and End Results database. This work provides a clear example of how semantic technologies from caBIG™ can be applied to support a wide range of clinical and research tasks, and integrate data from disparate systems into a single architecture. This illustrates the central importance of caBIG™ to the management of clinical and biological data.

  11. Modelling and Evaluating Software Project Risks with Quantitative Analysis Techniques in Planning Software Development

    OpenAIRE

    Elzamly, Abdelrafe; Hussin, Burairah

    2015-01-01

    Risk is not always avoidable, but it is controllable. The aim of this paper is to present new techniques which use the stepwise regression analysis tomodel and evaluate the risks in planning software development and reducing risk with software process improvement. Top ten software risk factors in planning software development phase and thirty control factors were presented to respondents. This study incorporates risk management approach and planning software development to mitigate software p...

  12. Intrinsic Motivation in Open Source Software Development

    DEFF Research Database (Denmark)

    Bitzer, J.; W., Schrettl,; Schröder, Philipp

    2004-01-01

    This papers sheds light on the puzzling evidence that even though open source software (OSS) is a public good, it is developed for free by highly qualified, young and motivated individuals, and evolves at a rapid pace. We show that once OSS development is understood as the private provision...

  13. Development Process for Science Operation Software

    Science.gov (United States)

    Ballester, Pascal

    2015-12-01

    Scientific software development at ESO involves defined processes for the main phases of project inception, monitoring of development performed by instrument consortia, application maintenance, and application support. We discuss the lessons learnt and evolution of the process for the next generation of tools and observing facilities.

  14. Model Driven Software Development for Agricultural Robotics

    DEFF Research Database (Denmark)

    Larsen, Morten

    The design and development of agricultural robots, consists of both mechan- ical, electrical and software components. All these components must be de- signed and combined such that the overall goal of the robot is fulfilled. The design and development of these systems require collaboration between...... processing, control engineering, etc. This thesis proposes a Model-Driven Software Develop- ment based approach to model, analyse and partially generate the software implementation of a agricultural robot. Furthermore, Guidelines for mod- elling the architecture of an agricultural robots are provided......, assisting with bridging the different engineering disciplines. Timing play an important role in agricultural robotic applications, synchronisation of robot movement and implement actions is important in order to achieve precision spraying, me- chanical weeding, individual feeding, etc. Discovering...

  15. Trust in Co-sourced Software Development

    DEFF Research Database (Denmark)

    Schlichter, Bjarne Rerup; Persson, John Stouby

    2014-01-01

    Software development projects are increasingly geographical distributed with offshoring. Co-sourcing is a highly integrative and cohesive approach, seen successful, to software development offshoring. However, research of how dynamic aspects of trust are shaped in co-sourcing activities is limited....... We present a case study of how the co-sourcing relationship between a certified CMMI-level 5 Danish software company and an offshoring supplier can be conceptualized as an Abstract System. An Abstract System is a dis-embedded social system (such as banking) that is trusted despite lack of detailed...... understanding or personal trust relations. The paper suggests how certain work practices among developers and managers can be explained using a dynamic trust lens based on Abstract Systems, especially dis- and re-embedding mechanisms...

  16. Global Software Development with Cloud Platforms

    Science.gov (United States)

    Yara, Pavan; Ramachandran, Ramaseshan; Balasubramanian, Gayathri; Muthuswamy, Karthik; Chandrasekar, Divya

    Offshore and outsourced distributed software development models and processes are facing challenges, previously unknown, with respect to computing capacity, bandwidth, storage, security, complexity, reliability, and business uncertainty. Clouds promise to address these challenges by adopting recent advances in virtualization, parallel and distributed systems, utility computing, and software services. In this paper, we envision a cloud-based platform that addresses some of these core problems. We outline a generic cloud architecture, its design and our first implementation results for three cloud forms - a compute cloud, a storage cloud and a cloud-based software service- in the context of global distributed software development (GSD). Our ”compute cloud” provides computational services such as continuous code integration and a compile server farm, ”storage cloud” offers storage (block or file-based) services with an on-line virtual storage service, whereas the on-line virtual labs represent a useful cloud service. We note some of the use cases for clouds in GSD, the lessons learned with our prototypes and identify challenges that must be conquered before realizing the full business benefits. We believe that in the future, software practitioners will focus more on these cloud computing platforms and see clouds as a means to supporting a ecosystem of clients, developers and other key stakeholders.

  17. Becoming Predictably Adaptable in Software Development

    Directory of Open Access Journals (Sweden)

    Michael Vakoc

    2017-10-01

    Full Text Available It’s difficult to state exact timelines in software development and it is even more difficult to say when features that users want will be delivered. We propose changes to current software development methodologies that enable companies to be predictably adaptable and deliver both on time and what customer asked for. We do so through research of current literature, interviews and personal experience working at an international company that builds products for millions of customers and is facing exactly the challenges described above.

  18. Applications of Ontologies in Collaborative Software Development

    Science.gov (United States)

    Happel, Hans-Jörg; Maalej, Walid; Seedorf, Stefan

    Making distributed teams more efficient is one main goal of Collaborative Software Development (CSD) research. To this end, ontologies, which are models that capture a shared understanding of a specific domain, provide key benefits. Ontologies have formal, machine-interpretable semantics that allow to define semantic mappings for heterogeneous data and to infer implicit knowledge at run-time. Extending development infrastructures and software architectures with ontologies (of problem and solution domains) will address coordination and knowledge sharing challenges in activities such as documentation, requirements specificationrequirements specification , component reuse, error handling, and test case management. The purpose of this article is to provide systematic account of how ontologies can be applied in CSD, and to describe benefits of both existing applications such as "semantic wikissemantic wikis " as well as visionary scenarios such as a "Software Engineering Semantic Websemantic web ".

  19. Managing Risk Areas in Software Development Offshoring

    DEFF Research Database (Denmark)

    Persson, John Stouby; Schlichter, Bjarne Rerup

    2015-01-01

    Software companies are increasingly offshoring development to countries with high expertise at lower cost. Offshoring involves particular risk areas that if ignored increase the likelihood of failure. However, the offshoring client’s maturity level may influence the management of these risk areas...... of the offshoring risk areas in accordance with the findings of previous research. However, the risk area of task distribution is a notable exception. In this case, managers perceive high task uncertainty, equivocality, and coupling across sites as risk mitigation rather than risk taking. The paper discusses how....... Against this backdrop, we present an interpretive case study of how managers perceive and mitigate the risk areas in software development offshoring with a mature CMMI level 5 (Capability Maturity Model, Integrated) software company as the client. We find that managers perceive and mitigate most...

  20. Monitoring Student Activity in Collaborative Software Development

    DEFF Research Database (Denmark)

    Dietsch, Daniel; Podelski, Andreas; Nam, Jaechang

    2013-01-01

    by weekly meetings with teaching assistants and instructors regarding group progress, code quality, and management issues. Through these meetings and their interactions with the software tools, students leave a detailed trace of data related to their individual engagement and their collaboration behavior......This paper presents data analysis from a course on Software Engineering in an effort to identify metrics and techniques that would allow instructor to act proactively and identify patterns of low engagement and inefficient peer collaboration. Over the last two terms, 106 students in their second...... year of studies formed 20 groups and worked collaboratively to develop video games. Throughout the lab, students have to use a variety of tools for managing and developing their projects, such as software version control, static analysis tools, wikis, mailing lists, etc. The students are also supported...

  1. marvin: A Platform for Chemoinformatics Software Development

    Directory of Open Access Journals (Sweden)

    H. J. Roth

    2002-02-01

    Full Text Available A strategy for a new type of platform for chemoinformatics software development and its first implementation are presented. The basic task of such a platform is to apply sequences of computational methods to high numbers of molecules. The implementation presented is based on four major components: (a the application manager, responsible for running programs and for data management; (b executable applications that supply limited pieces of functionality; (c syntax definitions for data and control files and (d the runtime library which comprises routines for data handling and user interface. This simple concept is implemented in the software package marvin. Different computational methods are available within marvin, including parts of commercial software packages (e.g. molecular modeling, bioinformatics, statistics, etc. as well as newly developed and innovative algorithms. The basic layout of marvin is described and a simple example illustrates its application.

  2. A Quantitative Study of Global Software Development Teams, Requirements, and Software Projects

    Science.gov (United States)

    Parker, Linda L.

    2016-01-01

    The study explored the relationship between global software development teams, effective software requirements, and stakeholders' perception of successful software development projects within the field of information technology management. It examined the critical relationship between Global Software Development (GSD) teams creating effective…

  3. Testing Software Development Project Productivity Model

    Science.gov (United States)

    Lipkin, Ilya

    Software development is an increasingly influential factor in today's business environment, and a major issue affecting software development is how an organization estimates projects. If the organization underestimates cost, schedule, and quality requirements, the end results will not meet customer needs. On the other hand, if the organization overestimates these criteria, resources that could have been used more profitably will be wasted. There is no accurate model or measure available that can guide an organization in a quest for software development, with existing estimation models often underestimating software development efforts as much as 500 to 600 percent. To address this issue, existing models usually are calibrated using local data with a small sample size, with resulting estimates not offering improved cost analysis. This study presents a conceptual model for accurately estimating software development, based on an extensive literature review and theoretical analysis based on Sociotechnical Systems (STS) theory. The conceptual model serves as a solution to bridge organizational and technological factors and is validated using an empirical dataset provided by the DoD. Practical implications of this study allow for practitioners to concentrate on specific constructs of interest that provide the best value for the least amount of time. This study outlines key contributing constructs that are unique for Software Size E-SLOC, Man-hours Spent, and Quality of the Product, those constructs having the largest contribution to project productivity. This study discusses customer characteristics and provides a framework for a simplified project analysis for source selection evaluation and audit task reviews for the customers and suppliers. Theoretical contributions of this study provide an initial theory-based hypothesized project productivity model that can be used as a generic overall model across several application domains such as IT, Command and Control

  4. Suitability of Modern Software Development Methodologies for Model Driven Development

    Directory of Open Access Journals (Sweden)

    Ruben Picek

    2009-12-01

    Full Text Available As an answer to today’s growing challenges in software industry, wide spectrum of new approaches of software development has occurred. One prominent direction is currently most promising software development paradigm called Model Driven Development (MDD. Despite a lot of skepticism and problems, MDD paradigm is being used and improved to accomplish many inherent potential benefits. In the methodological approach of software development it is necessary to use some kind of development process. Modern methodologies can be classified into two main categories: formal or heavyweight and agile or lightweight. But when it is a question about MDD and development process for MDD, currently known methodologies are very poor or better said they don't have any explanation of MDD process. As the result of research, in this paper, author examines the possibilities of using existing modern software methodologies in context of MDD paradigm.

  5. The Elements of an Effective Software Development Plan - Software Development Process Guidebook

    Science.gov (United States)

    2011-11-11

    Title Revision Date Document Number Software Estimating Guide Document Date ISO 9001 Quality Program Document Date ISO /IEC 15939 Software...commercial standards such as ISO 9001 as well as the SEI’s CMMI . 3.9.2.2 XMPL Program Policies and Practices Software development activities are also...2005 J-STD-016-1995 Standard for Information Technology September 1995 ANSI/ ISO /IEC 9899 c 1990 ISO /IEC 14882 c++ July 1998 Document Number

  6. General guidelines for biomedical software development

    Science.gov (United States)

    Silva, Luis Bastiao; Jimenez, Rafael C.; Blomberg, Niklas; Luis Oliveira, José

    2017-01-01

    Most bioinformatics tools available today were not written by professional software developers, but by people that wanted to solve their own problems, using computational solutions and spending the minimum time and effort possible, since these were just the means to an end. Consequently, a vast number of software applications are currently available, hindering the task of identifying the utility and quality of each. At the same time, this situation has hindered regular adoption of these tools in clinical practice. Typically, they are not sufficiently developed to be used by most clinical researchers and practitioners. To address these issues, it is necessary to re-think how biomedical applications are built and adopt new strategies that ensure quality, efficiency, robustness, correctness and reusability of software components. We also need to engage end-users during the development process to ensure that applications fit their needs. In this review, we present a set of guidelines to support biomedical software development, with an explanation of how they can be implemented and what kind of open-source tools can be used for each specific topic. PMID:28443186

  7. Embedding Quality Function Deployment In Software Development ...

    African Journals Online (AJOL)

    2013-03-01

    Mar 1, 2013 ... product design, development, and manufacture. Traditionally, the house of quality has been used in the automobile industry and other factory environments, but the same challenge of managing design complexity that Quality Function. Deployment tackles in the product industry also plagues the software ...

  8. A Framework for Teaching Software Development Methods

    Science.gov (United States)

    Dubinsky, Yael; Hazzan, Orit

    2005-01-01

    This article presents a study that aims at constructing a teaching framework for software development methods in higher education. The research field is a capstone project-based course, offered by the Technion's Department of Computer Science, in which Extreme Programming is introduced. The research paradigm is an Action Research that involves…

  9. Communal Resources in Open Source Software Development

    Science.gov (United States)

    Spaeth, Sebastian; Haefliger, Stefan; von Krogh, Georg; Renzl, Birgit

    2008-01-01

    Introduction: Virtual communities play an important role in innovation. The paper focuses on the particular form of collective action in virtual communities underlying as Open Source software development projects. Method: Building on resource mobilization theory and private-collective innovation, we propose a theory of collective action in…

  10. Development of a flight software testing methodology

    Science.gov (United States)

    Mccluskey, E. J.; Andrews, D. M.

    1985-01-01

    The research to develop a testing methodology for flight software is described. An experiment was conducted in using assertions to dynamically test digital flight control software. The experiment showed that 87% of typical errors introduced into the program would be detected by assertions. Detailed analysis of the test data showed that the number of assertions needed to detect those errors could be reduced to a minimal set. The analysis also revealed that the most effective assertions tested program parameters that provided greater indirect (collateral) testing of other parameters. In addition, a prototype watchdog task system was built to evaluate the effectiveness of executing assertions in parallel by using the multitasking features of Ada.

  11. [Logical-mathematical "ND" software development].

    Science.gov (United States)

    de Oliveira Lopes, Marcos Venícios; da Silva, Viviane Martins; de Araújo, Thelma Leite

    2004-01-01

    In this article, we propose a mathematical analysis model for the generation of a proportional value of defining characteristics in nursing diagnoses. The study results are based on the logical-mathematical development of software specifically built for the generation of diagnosis hypotheses. The final calculation creates the sum of all defining characteristics found in each diagnosis, comparing it with the value of the V variable of the diagnosis, according to a mathematical rule that was set. It is concluded that the software needs to go through clinical validation in order to evaluate the pertinence of the rule proposed here.

  12. Architecture design in global and model-centric software development

    NARCIS (Netherlands)

    Heijstek, Werner

    2012-01-01

    This doctoral dissertation describes a series of empirical investigations into representation, dissemination and coordination of software architecture design in the context of global software development. A particular focus is placed on model-centric and model-driven software development.

  13. Reliable Software Development for Machine Protection Systems

    CERN Document Server

    Anderson, D; Dragu, M; Fuchsberger, K; Garnier, JC; Gorzawski, AA; Koza, M; Krol, K; Misiowiec, K; Stamos, K; Zerlauth, M

    2014-01-01

    The Controls software for the Large Hadron Collider (LHC) at CERN, with more than 150 millions lines of code, resides amongst the largest known code bases in the world1. Industry has been applying Agile software engineering techniques for more than two decades now, and the advantages of these techniques can no longer be ignored to manage the code base for large projects within the accelerator community. Furthermore, CERN is a particular environment due to the high personnel turnover and manpower limitations, where applying Agile processes can improve both, the codebase management as well as its quality. This paper presents the successful application of the Agile software development process Scrum for machine protection systems at CERN, the quality standards and infrastructure introduced together with the Agile process as well as the challenges encountered to adapt it to the CERN environment.

  14. Software

    Energy Technology Data Exchange (ETDEWEB)

    Macedo, R.; Budd, G.; Ross, E.; Wells, P.

    2010-07-15

    The software section of this journal presented new software programs that have been developed to help in the exploration and development of hydrocarbon resources. Software provider IHS Inc. has made additions to its geological and engineering analysis software tool, IHS PETRA, a product used by geoscientists and engineers to visualize, analyze and manage well production, well log, drilling, reservoir, seismic and other related information. IHS PETRA also includes a directional well module and a decline curve analysis module to improve analysis capabilities in unconventional reservoirs. Petris Technology Inc. has developed a software to help manage the large volumes of data. PetrisWinds Enterprise (PWE) helps users find and manage wellbore data, including conventional wireline and MWD core data; analysis core photos and images; waveforms and NMR; and external files documentation. Ottawa-based Ambercore Software Inc. has been collaborating with Nexen on the Petroleum iQ software for steam assisted gravity drainage (SAGD) producers. Petroleum iQ integrates geology and geophysics data with engineering data in 3D and 4D. Calgary-based Envirosoft Corporation has developed a software that reduces the costly and time-consuming effort required to comply with Directive 39 of the Alberta Energy Resources Conservation Board. The product includes an emissions modelling software. Houston-based Seismic Micro-Technology (SMT) has developed the Kingdom software that features the latest in seismic interpretation. Holland-based Joa Oil and Gas and Calgary-based Computer Modelling Group have both supplied the petroleum industry with advanced reservoir simulation software that enables reservoir interpretation. The 2010 software survey included a guide to new software applications designed to facilitate petroleum exploration, drilling and production activities. Oil and gas producers can use the products for a range of functions, including reservoir characterization and accounting. In

  15. Developing collaborative environments - A Holistic software development methodology

    Energy Technology Data Exchange (ETDEWEB)

    PETERSEN,MARJORIE B.; MITCHINER,JOHN L.

    2000-03-08

    Sandia National Laboratories has been developing technologies to support person-to-person collaboration and the efforts of teams in the business and research communities. The technologies developed include knowledge-based design advisors, knowledge management systems, and streamlined manufacturing supply chains. These collaborative environments in which people can work together sharing information and knowledge have required a new approach to software development. The approach includes an emphasis on the requisite change in business practice that often inhibits user acceptance of collaborative technology. Leveraging the experience from this work, they have established a multidisciplinary approach for developing collaborative software environments. They call this approach ``A Holistic Software Development Methodology''.

  16. Software Development Factories, the Project Management Perspective

    Directory of Open Access Journals (Sweden)

    Felician ALECU

    2012-01-01

    Full Text Available In a software factory, the applications are developed in the same way Henri Ford started manufacturing cars. In such a way, a customized solution could be obtained within a reasonable budget and within the foreseen timeframe. This development method offers a flexible solution that can be readapted rapidly and automatically to the changing business needs, so the Project Management becomes a real challenge.

  17. The digital guide to software development

    CERN Document Server

    Dickinson, Christine

    1989-01-01

    Here is the first published description of the processes and practices, tools, and methods this industry giant uses to develop its software products. This 'shirt-sleeves' guide is packed with diagrams and tables that illustrate each step in the complexsoftware development process. You'll learn all about Digital's standard 'phase review process,' the role of teams and their leaders, how CASE tools work, and how to control a project while improving productivity and product quality.

  18. CERN software developers gathering in September

    CERN Multimedia

    Antonella Del Rosso

    2015-01-01

    Hundreds of developers work on many different projects at CERN – from data analysis to beam operations and administrative applications. As of this September, they will have an opportunity to meet each other at the newly established Developers@CERN Forum.   “We go to conferences elsewhere but we hardly ever meet here at CERN, where we all work on our own separate software projects,” says José Carlos Luna, a member of the IT department and one of the organisers of the first Developers@CERN Forum. Indeed, although several CERN departments have software developers working in their teams, there is no proper “community” built around them. The first Developers@CERN Forum will be held on 28 and 29 September. The event is being organised by a few developers from the IT department, together with colleagues from the GS and EN departments. Its main scope is to reach out to all the departments in an effort to bring all CERN’s software dev...

  19. Developing software is not an easy matter

    Directory of Open Access Journals (Sweden)

    Tina Cardrige

    2014-12-01

    Full Text Available Why is it so difficult to learn to develop software? This question has been trying to answer for a long time, but has not yet found a solution to this issue. Moreover, it tends to confuse development with programming, and this also creates problems to elucidate the question. In an era in which urgently required improve the quality, and reliability, and safety of software it becomes urgent to potentiate or develop skills and abilities in professionals to meet these needs. But students are not interested in making careers involving these concepts, they prefer other less demanding and easier to achieve a certification. This article attempts to answer the question and present some suggestions for overcoming this difficulty.

  20. Embracing Open Software Development in Solar Physics

    Science.gov (United States)

    Hughitt, V. K.; Ireland, J.; Christe, S.; Mueller, D.

    2012-12-01

    We discuss two ongoing software projects in solar physics that have adopted best practices of the open source software community. The first, the Helioviewer Project, is a powerful data visualization tool which includes online and Java interfaces inspired by Google Maps (tm). This effort allows users to find solar features and events of interest, and download the corresponding data. Having found data of interest, the user now has to analyze it. The dominant solar data analysis platform is an open-source library called SolarSoft (SSW). Although SSW itself is open-source, the programming language used is IDL, a proprietary language with licensing costs that are prohibative for many institutions and individuals. SSW is composed of a collection of related scripts written by missions and individuals for solar data processing and analysis, without any consistent data structures or common interfaces. Further, at the time when SSW was initially developed, many of the best software development processes of today (mirrored and distributed version control, unit testing, continuous integration, etc.) were not standard, and have not since been adopted. The challenges inherent in developing SolarSoft led to a second software project known as SunPy. SunPy is an open-source Python-based library which seeks to create a unified solar data analysis environment including a number of core datatypes such as Maps, Lightcurves, and Spectra which have consistent interfaces and behaviors. By taking advantage of the large and sophisticated body of scientific software already available in Python (e.g. SciPy, NumPy, Matplotlib), and by adopting many of the best practices refined in open-source software development, SunPy has been able to develop at a very rapid pace while still ensuring a high level of reliability. The Helioviewer Project and SunPy represent two pioneering technologies in solar physics - simple yet flexible data visualization and a powerful, new data analysis environment. We

  1. Software exporting: a developing country advantage

    Directory of Open Access Journals (Sweden)

    Hossein Askari

    2003-03-01

    Full Text Available Software exports have the potential to make a significant contribution to the economies of developing countries and to the global IT industry. Developing countries have demonstrated a comparative advantage in this export sector and the global IT industry can benefit from this developing country advantage. Today, IT is high investment, high risk, and high reward and has graduated from being a critical support function to a key partner, sometimes responsible for directing the strategy of an enterprise. Business and technology managers cannot afford to miss the opportunities provided by the comparative advantage of developing countries in the IT arena.

  2. Ethics and Morality in Software Development: A Developer's Perspective

    Science.gov (United States)

    Stephenson, James H.

    2010-01-01

    Computers and other digital devices have become ubiquitous in our lives. Almost all aspects of our lives are in part or wholly impacted by computers and the software that runs on them. Unknowingly, we are placing our livelihoods and even our lives in the hands unknown software developers. Ethical and moral decisions made during software…

  3. Everything a medical innovator needs to know about developing software.

    Science.gov (United States)

    Holmes, Marcus

    2013-01-01

    Software development is hard enough for specialist software companies to get right. For people outside the industry it can be a minefield full of hidden surprises. This articles hopes to explain why software development is so hard, how to go about approaching a software development project, and how to get the best out of any collaboration with a development team. It should be read by anyone who is considering developing a software product, including websites, from a non-development.

  4. Everything a medical innovator needs to know about developing software

    Directory of Open Access Journals (Sweden)

    Marcus Holmes

    2013-01-01

    Full Text Available Software development is hard enough for specialist software companies to get right. For people outside the industry it can be a minefield full of hidden surprises. This articles hopes to explain why software development is so hard, how to go about approaching a software development project, and how to get the best out of any collaboration with a development team. It should be read by anyone who is considering developing a software product, including websites, from a non-development.

  5. Remote Software Application and Display Development

    Science.gov (United States)

    Sanders, Brandon T.

    2014-01-01

    The era of the shuttle program has come to an end, but only to give rise to newer and more exciting projects. Now is the time of the Orion spacecraft, a work of art designed to exceed all previous endeavors of man. NASA is exiting the time of exploration and is entering a new period, a period of pioneering. With this new mission, many of NASAs organizations must undergo a great deal of change and development to support the Orion missions. The Spaceport Command and Control System (SCCS) is the new system that will provide NASA the ability to launch rockets into orbit and thus control Orion and other spacecraft as the goal of populating Mars becomes ever increasingly tangible. Since the previous control system, Launch Processing System (LPS), was primarily designed to launch the shuttles, SCCS was needed as Kennedy Space Center (KSC) reorganized to a multiuser spaceport for commercial flights, providing a more versatile control over rockets. Within SCCS, is the Launch Control System (LCS), which is the remote software behind the command and monitoring of flight and ground system hardware. This internship at KSC has involved two main components in LCS, including Remote Software Application and Display development. The display environment provides a graphical user interface for an operator to view and see if any cautions are raised, while the remote applications are the backbone that communicate with hardware, and then relay the data back to the displays. These elements go hand in hand as they provide monitoring and control over hardware and software alike from the safety of the Launch Control Center. The remote software applications are written in Application Control Language (ACL), which must undergo unit testing to ensure data integrity. This paper describes both the implementation and writing of unit tests in ACL code for remote software applications, as well as the building of remote displays to be used in the Launch Control Center (LCC).

  6. Software Quality in the Objectory Software Development Process

    NARCIS (Netherlands)

    van den Berg, Klaas; Demeyer, S.; Bosch, J.

    In this paper we discuss how software quality assurance is realized in Rational Objectory. Although much support is given through guidelines and checkpoints, the tool fails to provide clear goals and metrics for quality assessments and it only partially supports the phases in a measurement program.

  7. Software Quality Perceptions of Stakeholders Involved in the Software Development Process

    Science.gov (United States)

    Padmanabhan, Priya

    2013-01-01

    Software quality is one of the primary determinants of project management success. Stakeholders involved in software development widely agree that quality is important (Barney and Wohlin 2009). However, they may differ on what constitutes software quality, and which of its attributes are more important than others. Although, software quality…

  8. Math Description Engine Software Development Kit

    Science.gov (United States)

    Shelton, Robert O.; Smith, Stephanie L.; Dexter, Dan E.; Hodgson, Terry R.

    2010-01-01

    The Math Description Engine Software Development Kit (MDE SDK) can be used by software developers to make computer-rendered graphs more accessible to blind and visually-impaired users. The MDE SDK generates alternative graph descriptions in two forms: textual descriptions and non-verbal sound renderings, or sonification. It also enables display of an animated trace of a graph sonification on a visual graph component, with color and line-thickness options for users having low vision or color-related impairments. A set of accessible graphical user interface widgets is provided for operation by end users and for control of accessible graph displays. Version 1.0 of the MDE SDK generates text descriptions for 2D graphs commonly seen in math and science curriculum (and practice). The mathematically rich text descriptions can also serve as a virtual math and science assistant for blind and sighted users, making graphs more accessible for everyone. The MDE SDK has a simple application programming interface (API) that makes it easy for programmers and Web-site developers to make graphs accessible with just a few lines of code. The source code is written in Java for cross-platform compatibility and to take advantage of Java s built-in support for building accessible software application interfaces. Compiled-library and NASA Open Source versions are available with API documentation and Programmer s Guide at http:/ / prim e.jsc.n asa. gov.

  9. Control of research oriented software development

    Energy Technology Data Exchange (ETDEWEB)

    Lewis, L.C.; Dronkers, J.J.; Pitsker, B.

    1985-12-01

    The Nuclear Waste Policy Act of 1982 directs the Department of Energy (DOE) to dispose permanently high level radioactive waste and civilian spent nuclear fuel by January 31, 1998. DOE has responded by creating an organizational structure that directs all the activities necessary to carry out the legislative demands. LLNL is conducting research in the earth sciences and is developing some unique computer codes to help establish the feasibility of geologic repositories for nuclear waste. LLNL has several codes under development. This paper examines the administrative and organizational measures that were and still are being undertaken in order to control the development of the two major codes. In the case of one code, the software quality assurance requirements were imposed five years after the code began its development. This required a retroactive application of requirements. The other code is still in the conceptual stages of development and here requirements can be applied as soon as the initial code design begins. Both codes are being developed by scientists, not computer programmers, and both are modeling codes, not data acquisition and reduction codes. Also the projects for which these codes are being developed have slightly different software quality assurance requirements. All these factors contribute unique difficulties in attempts to assure that the development not only results in a reliable prediction, but that whatever the reliability, it can be objectively shown to exist. The paper will examine a software management model. It will also discuss the reasons why it is felt that this particular model would stand a reasonable chance for success. The paper will then describe the way in which the model should be integrated into the existing management configuration and tradition.

  10. TMT Approach to Observatory Software Development Process

    OpenAIRE

    Buur, Hanne; Subramaniam, Annapurni; Gillies, Kim; Dumas, Christophe; Bhatia, Ravinder

    2016-01-01

    The purpose of the Observatory Software System (OSW) is to integrate all software and hardware components of the Thirty Meter Telescope (TMT) to enable observations and data capture; thus it is a complex software system that is defined by four principal software subsystems: Common Software (CSW), Executive Software (ESW), Data Management System (DMS) and Science Operations Support System (SOSS), all of which have interdependencies with the observatory control systems and data acquisition syst...

  11. Computer-Aided Software Engineering - An approach to real-time software development

    Science.gov (United States)

    Walker, Carrie K.; Turkovich, John J.

    1989-01-01

    A new software engineering discipline is Computer-Aided Software Engineering (CASE), a technology aimed at automating the software development process. This paper explores the development of CASE technology, particularly in the area of real-time/scientific/engineering software, and a history of CASE is given. The proposed software development environment for the Advanced Launch System (ALS CASE) is described as an example of an advanced software development system for real-time/scientific/engineering (RT/SE) software. The Automated Programming Subsystem of ALS CASE automatically generates executable code and corresponding documentation from a suitably formatted specification of the software requirements. Software requirements are interactively specified in the form of engineering block diagrams. Several demonstrations of the Automated Programming Subsystem are discussed.

  12. Co-sourcing in software development offshoring

    DEFF Research Database (Denmark)

    Schlichter, Bjarne Rerup; Persson, John Stouby

    2013-01-01

    -sourcing shapes the perception and alleviation of common offshoring risks is limited. We present a case study of how a certified CMMI-level 5 Danish software supplier approaches these risks in offshore co-sourcing. The paper explains how common offshoring risks are perceived and alleviated when adopting the co......-sourcing strategy in a mature (CMMI level 5) software development organization. We found that most of the common offshoring risks were perceived and alleviated in accordance with previous research, with the exception of the task distribution risk area. In this case, high task uncertainty, equivocality, and coupling...... across sites was perceived more as risk alleviation than risk taking. This perception of task distribution was combined with high attention to the closely interrelated structure and technology components in terms of CMMI and the actors’ cohesion and integration in terms of Scrum....

  13. Teaching Software Developers to Perform UX Tasks

    DEFF Research Database (Denmark)

    Øvad, Tina; Bornoe, Nis; Larsen, Lars Bo

    2015-01-01

    Good UX design is becoming important within the industry when developing new products. This entails that UX skills have to be available in the development processes. This paper investigates the opportunities of using software developers as a UX work resource in the day-to-day working practice....... This is done via an action research study where the developers were provided with material concerning a modified AB usability test, by training them in performing this type of work, and by using their feedback to improve the method and the material. The overall result of the study is positive and it is found...... that by using the developers' feedback in the modification process, the method has truly become applicable within an agile, industrial setting. In combination with a guideline and template this has induced the developers to feel confident in independently performing this type of work....

  14. artdaq: DAQ software development made simple

    Science.gov (United States)

    Biery, Kurt; Flumerfelt, Eric; Freeman, John; Ketchum, Wesley; Lukhanin, Gennadiy; Rechenmacher, Ron

    2017-10-01

    For a few years now, the artdaq data acquisition software toolkit has provided numerous experiments with ready-to-use components which allow for rapid development and deployment of DAQ systems. Developed within the Fermilab Scientific Computing Division, artdaq provides data transfer, event building, run control, and event analysis functionality. This latter feature includes built-in support for the art event analysis framework, allowing experiments to run art modules for real-time filtering, compression, disk writing and online monitoring. As art, also developed at Fermilab, is also used for offline analysis, a major advantage of artdaq is that it allows developers to easily switch between developing online and offline software. artdaq continues to be improved. Support for an alternate mode of running whereby data from some subdetector components are only streamed if requested has been added; this option will reduce unnecessary DAQ throughput. Real-time reporting of DAQ metrics has been implemented, along with the flexibility to choose the format through which experiments receive the reports; these formats include the Ganglia, Graphite and syslog software packages, along with flat ASCII files. Additionally, work has been performed investigating more flexible modes of online monitoring, including the capability to run multiple online monitoring processes on different hosts, each running its own set of art modules. Finally, a web-based GUI interface through which users can configure details of their DAQ system has been implemented, increasing the ease of use of the system. Already successfully deployed on the LArlAT, DarkSide-50, DUNE 35ton and Mu2e experiments, artdaq will be employed for SBND and is a strong candidate for use on ICARUS and protoDUNE. With each experiment comes new ideas for how artdaq can be made more flexible and powerful. The above improvements will be described, along with potential ideas for the future.

  15. The Effects of Development Team Skill on Software Product Quality

    Science.gov (United States)

    Beaver, Justin M.; Schiavone, Guy A.

    2006-01-01

    This paper provides an analysis of the effect of the skill/experience of the software development team on the quality of the final software product. A method for the assessment of software development team skill and experience is proposed, and was derived from a workforce management tool currently in use by the National Aeronautics and Space Administration. Using data from 26 smallscale software development projects, the team skill measures are correlated to 5 software product quality metrics from the ISO/IEC 9126 Software Engineering Product Quality standard. in the analysis of the results, development team skill is found to be a significant factor in the adequacy of the design and implementation. In addition, the results imply that inexperienced software developers are tasked with responsibilities ill-suited to their skill level, and thus have a significant adverse effect on the quality of the software product. Keywords: software quality, development skill, software metrics

  16. Understanding Acceptance of Software Metrics--A Developer Perspective

    Science.gov (United States)

    Umarji, Medha

    2009-01-01

    Software metrics are measures of software products and processes. Metrics are widely used by software organizations to help manage projects, improve product quality and increase efficiency of the software development process. However, metrics programs tend to have a high failure rate in organizations, and developer pushback is one of the sources…

  17. Strategic Dimensions of Software Development in a Supply Chain

    NARCIS (Netherlands)

    Kruithof, G. H.; Meijler, T. D.; Barry, C; Conboy, K; Lang, M; Wojtkowski, G; Wojtkowski, W

    2009-01-01

    This chapter explores the relationship between characteristics of a software market and strategic management of software development in a supply chain. The typical characteristics of software markets and software supply chains are described. A decision framework is developed which connects specific

  18. Quality Assurance in Software Development: An Exploratory Investigation in Software Project Failures and Business Performance

    Science.gov (United States)

    Ichu, Emmanuel A.

    2010-01-01

    Software quality is perhaps one of the most sought-after attributes in product development, however; this goal is unattained. Problem factors in software development and how these have affected the maintainability of the delivered software systems requires a thorough investigation. It was, therefore, very important to understand software…

  19. Metrics Are Needed for Collaborative Software Development

    Directory of Open Access Journals (Sweden)

    Mojgan Mohtashami

    2011-10-01

    Full Text Available There is a need for metrics for inter-organizational collaborative software development projects, encompassing management and technical concerns. In particular, metrics are needed that are aimed at the collaborative aspect itself, such as readiness for collaboration, the quality and/or the costs and benefits of collaboration in a specific ongoing project. We suggest questions and directions for such metrics, spanning the full lifespan of a collaborative project, from considering the suitability of collaboration through evaluating ongoing projects to final evaluation of the collaboration.

  20. Software Development Cost Estimation Executive Summary

    Science.gov (United States)

    Hihn, Jairus M.; Menzies, Tim

    2006-01-01

    Identify simple fully validated cost models that provide estimation uncertainty with cost estimate. Based on COCOMO variable set. Use machine learning techniques to determine: a) Minimum number of cost drivers required for NASA domain based cost models; b) Minimum number of data records required and c) Estimation Uncertainty. Build a repository of software cost estimation information. Coordinating tool development and data collection with: a) Tasks funded by PA&E Cost Analysis; b) IV&V Effort Estimation Task and c) NASA SEPG activities.

  1. Impact of Software Metrics on Object-Oriented Software Development Life Cycle

    OpenAIRE

    Dr.B.R.Sastry,; M.V.Vijaya Saradhi

    2010-01-01

    An attempt is made to implement software metrics with aid of GUI and several programs were developed to calculate the metrics, which can be used as a stand alone system. Further an emphasis is made on differentrelationships of metrics, which will help to determine quality and quantity of software attributes measured with regard of Object-oriented Software development life cycle. In this paper, we present existing and new Software metrics useful in the different phase of the Object-Oriented So...

  2. Software Development and Feedback from Usability Evaluations

    DEFF Research Database (Denmark)

    Høegh, Rune Thaarup

    2008-01-01

    This paper presents a study of the strengths and weaknesses of written, multimedia and oral feedback from usability evaluations to developers. The strengths and weaknesses are related to how well the feedback supports the developers in addressing usability problems in a software system. The study...... concludes that using the traditional written usability report, as the only form of feedback from usability evaluations is associated with problems related to the report not supporting the process of addressing the usability problems. The report is criticized for representing an overwhelming amount...... of information, while still not offering the required information to address usability problems. Other forms of feedback, such as oral or multimedia feedback helps the developer in understanding the usability problems better, but are on the other hand less cost-effective than a written description....

  3. Spaceport Command and Control System Software Development

    Science.gov (United States)

    Mahlin, Jonathan Nicholas

    2017-01-01

    There is an immense challenge in organizing personnel across a large agency such as NASA, or even over a subset of that, like a center's Engineering directorate. Workforce inefficiencies and challenges are bound to grow over time without oversight and management. It is also not always possible to hire new employees to fill workforce gaps, therefore available resources must be utilized more efficiently. The goal of this internship was to develop software that improves organizational efficiency by aiding managers, making employee information viewable and editable in an intuitive manner. This semester I created an application for managers that aids in optimizing allocation of employee resources for a single division with the possibility of scaling upwards. My duties this semester consisted of developing frontend and backend software to complete this task. The application provides user-friendly information displays and documentation of the workforce to allow NASA to track diligently track the status and skills of its workforce. This tool should be able to prove that current employees are being effectively utilized and if new hires are necessary to fulfill skill gaps.

  4. A Comparison of Learning Technologies for Teaching Spacecraft Software Development

    Science.gov (United States)

    Straub, Jeremy

    2014-01-01

    The development of software for spacecraft represents a particular challenge and is, in many ways, a worst case scenario from a design perspective. Spacecraft software must be "bulletproof" and operate for extended periods of time without user intervention. If the software fails, it cannot be manually serviced. Software failure may…

  5. Cross-platform software development with Qt

    CERN Multimedia

    CERN. Geneva

    2018-01-01

    Overview of the Qt framework, new features of Qt 5.10 and preview of the Qt roadmap Introduction of the Qt framework as well as the new features and improvements of Qt 5.10. Showcase the different Qt UI technologies such as Widgets and Qml, overview of the automation suite and preview of the new features to come in Qt Creator. Elaborating on the Qt 3D offering and preview of the Qt roadmap. Presenting use cases of Qt integration in the medical and automation sectors. About the speaker Ionut is a serial entrepreneur, now working as Qt Adviser for The Qt Company. He studied biomedical engineering in Montreal, Canada and worked for 4 years as a Senior Software Developer at a software company in the life science and medical imaging area. He founded two interactive media companies, one in Montreal, Canada and another one in Berlin, Germany. Ionut has also more than 10 years of experience in the digital signage industry. He has been working with the Qt framework since 2006 and is a huge fan of it.   &...

  6. Large-scale GW software development

    Science.gov (United States)

    Kim, Minjung; Mandal, Subhasish; Mikida, Eric; Jindal, Prateek; Bohm, Eric; Jain, Nikhil; Kale, Laxmikant; Martyna, Glenn; Ismail-Beigi, Sohrab

    Electronic excitations are important in understanding and designing many functional materials. In terms of ab initio methods, the GW and Bethe-Saltpeter Equation (GW-BSE) beyond DFT methods have proved successful in describing excited states in many materials. However, the heavy computational loads and large memory requirements have hindered their routine applicability by the materials physics community. We summarize some of our collaborative efforts to develop a new software framework designed for GW calculations on massively parallel supercomputers. Our GW code is interfaced with the plane-wave pseudopotential ab initio molecular dynamics software ``OpenAtom'' which is based on the Charm++ parallel library. The computation of the electronic polarizability is one of the most expensive parts of any GW calculation. We describe our strategy that uses a real-space representation to avoid the large number of fast Fourier transforms (FFTs) common to most GW methods. We also describe an eigendecomposition of the plasmon modes from the resulting dielectric matrix that enhances efficiency. This work is supported by NSF through Grant ACI-1339804.

  7. Crisis management for software development and knowledge transfer

    CERN Document Server

    Zykov, Sergey V

    2016-01-01

    This well structured book discusses lifecycle optimization of software projects for crisis management by means of software engineering methods and tools. Its outcomes are based on lessons learned from the software engineering crisis which started in the 1960s. The book presents a systematic approach to overcome the crisis in software engineering depends which not only depends on technology-related but also on human-related factors. It proposes an adaptive methodology for software product development, which optimizes the software product lifecycle in order to avoid “local” crises of software production. The general lifecycle pattern and its stages are discussed, and their impact on the time and budget of the software product development is analyzed. The book identifies key advantages and disadvantages for various models selected and concludes that there is no “silver bullet”, or universal model, which suits all software products equally well. It approaches software architecture in terms of process, dat...

  8. Firing Room Remote Application Software Development & Swamp Works Laboratory Robot Software Development

    Science.gov (United States)

    Garcia, Janette

    2016-01-01

    The National Aeronautics and Space Administration (NASA) is creating a way to send humans beyond low Earth orbit, and later to Mars. Kennedy Space Center (KSC) is working to make this possible by developing a Spaceport Command and Control System (SCCS) which will allow the launch of Space Launch System (SLS). This paper's focus is on the work performed by the author in her first and second part of the internship as a remote application software developer. During the first part of her internship, the author worked on the SCCS's software application layer by assisting multiple ground subsystems teams including Launch Accessories (LACC) and Environmental Control System (ECS) on the design, development, integration, and testing of remote control software applications. Then, on the second part of the internship, the author worked on the development of robot software at the Swamp Works Laboratory which is a research and technology development group which focuses on inventing new technology to help future In-Situ Resource Utilization (ISRU) missions.

  9. Prometheus Reactor I&C Software Development Methodology, for Action

    Energy Technology Data Exchange (ETDEWEB)

    T. Hamilton

    2005-07-30

    The purpose of this letter is to submit the Reactor Instrumentation and Control (I&C) software life cycle, development methodology, and programming language selections and rationale for project Prometheus to NR for approval. This letter also provides the draft Reactor I&C Software Development Process Manual and Reactor Module Software Development Plan to NR for information.

  10. Software process improvement: controlling developers, managers or users?

    DEFF Research Database (Denmark)

    Nørbjerg, Jacob

    1999-01-01

    The paper discusses how the latest trend in the management of software development: software process improvement (SPI) may affect user-developer relations. At the outset, SPI concerns the "internal workings" of software organisations, but it may also be interpreted as one way to give the developer...

  11. Analysis of Test Efficiency during Software Development Process

    OpenAIRE

    nair, T. R. GopalaKrishnan; Suma, V.; Tiwari, Pranesh Kumar

    2012-01-01

    One of the prerequisites of any organization is an unvarying sustainability in the dynamic and competitive industrial environment. Development of high quality software is therefore an inevitable constraint of any software industry. Defect management being one of the highly influencing factors for the production of high quality software, it is obligatory for the software organizations to orient them towards effective defect management. Since, the time of software evolution, testing is deemed a...

  12. Management Guidelines for Database Developers' Teams in Software Development Projects

    Science.gov (United States)

    Rusu, Lazar; Lin, Yifeng; Hodosi, Georg

    Worldwide job market for database developers (DBDs) is continually increasing in last several years. In some companies, DBDs are organized as a special team (DBDs team) to support other projects and roles. As a new role, the DBDs team is facing a major problem that there are not any management guidelines for them. The team manager does not know which kinds of tasks should be assigned to this team and what practices should be used during DBDs work. Therefore in this paper we have developed a set of management guidelines, which includes 8 fundamental tasks and 17 practices from software development process, by using two methodologies Capability Maturity Model (CMM) and agile software development in particular Scrum in order to improve the DBDs team work. Moreover the management guidelines developed here has been complemented with practices from authors' experience in this area and has been evaluated in the case of a software company. The management guidelines for DBD teams presented in this paper could be very usefully for other companies too that are using a DBDs team and could contribute towards an increase of the efficiency of these teams in their work on software development projects.

  13. Recent software developments for biomechanical assessment

    Science.gov (United States)

    Greaves, John O. B.

    1990-08-01

    While much of the software developed in research laboratories is narrow in focus and suited for a specific experiment, some of it is broad enough and of high enough quality to be useful to others in solving similar problems. Several biomechanical assessment packages are now beginning to emerge, including: * 3D research biomechanics (5- and 6-DOF) with kinematics, kinetics, 32-channel analog data subsystem, and project management. * 3D full-body gait analysis with kinematics, kinetics, EMG charts, and force plate charts. * 2D dynamic rear-foot assessment. * 2D occupational biomechanics lifting task and personnel assessments. * 2D dynamic gait analysis. * Multiple 2D dynamic spine assessments. * 2D sport and biomechanics assessments with kinematics and kinetics. * 2D and 3D equine gait assessments.

  14. The distributed development environment for SDSS software

    Energy Technology Data Exchange (ETDEWEB)

    Berman, Eileen [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Gurbani, Vijay [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Mackinnon, Bryan [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Newberg, Heidi [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Nicinski, Tom [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Petravick, Don [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Pordes, Ruth [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Sergey, Gary [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Stoughton, C [Fermi National Accelerator Lab., Batavia, IL (United States); Lupton, Robert [Princeton Univ., NJ (United States)

    1994-04-01

    The authors present an integrated science software development environment, code maintenance and support system for the Sloan Digital Sky Survey (SDSS) now being actively used throughout the collaboration. The SDSS is a collaborative effort between Fermi National Accelerator Laboratory, the Univ. of Chicago, Princeton University, the Institute for Advanced Study, The John Hopkins University, Univ. of Washington, the U.S. Naval Observatory and the Japan Promotion Group. Its main results will be an imaging survey of 104deg2 and a red shift spectroscopic survey of 106 galaxies and 105 quasars producing approximately 1.2 x 1013 bytes of data over the 5 year running period (1995-2000). This will produce a three dimensional map of the Universe.

  15. ENACTED SOFTWARE DEVELOPMENT PROCESS BASED ON AGILE AND AGENT METHODOLOGIES

    OpenAIRE

    DR. NACHAMAI. M; M. SENTHIL VADIVU; VINITA TAPASKAR

    2011-01-01

    Software Engineering gives the procedures and practices to be followed in the software development and acts as a backbone for computer science engineering techniques. This paper deals with current trends in software engineering methodologies, Agile and Agent Oriented software development process. Agile Methodology is to meet the needs of dynamic changing requirements of the customers. This model is iterative and incremental and accepts the changes in requirements at any stage of development. ...

  16. Command and Control System Software Development

    Science.gov (United States)

    Velasquez, Ricky

    2017-01-01

    Kennedy Space Center has been the heart of human space flight for decades. From the Apollo Program to the Space Shuttle Program, and now to the coming Space Launch System (SLS) and Orion, NASA will be a leader in deep space exploration for mankind. Before any rockets blast off, there is significant work to be done in preparation for launch. People working on all aspects of spaceflight must contribute by developing new technology that has yet to participate in a successful launch, and which can work with technology already proven in flight. These innovations, whether hardware or software, must be tried and true, and includes the projects to which interns contribute to. For this internship, the objective was to create a data recording system for the developers of a LCS section that records certain messages in the traffic of the system. Developers would then be able to use these recordings for analysis later on, either manually or by an automated test. The tool would be of convenience to a developer as it would be used if the system's main data recorder was not available for tests.

  17. Agile Software Development: The Straight and Narrow Path to Secure Software?

    OpenAIRE

    Nicolaysen, Torstein; Sassoon, Richard; Bartnes, Maria; Jaatun, Martin Gilje

    2010-01-01

    In this article, we contrast the results of a series of interviews with agile software development organizations with a case study of a distributed agile development effort, focusing on how information security is taken care of in an agile context. The interviews indicate that small and medium-sized agile software development organizations do not use any particular methodology to achieve security goals, even when their software is web-facing and potential targets of attack, and our case study...

  18. Advanced software development workstation project: Engineering scripting language. Graphical editor

    Science.gov (United States)

    1992-01-01

    Software development is widely considered to be a bottleneck in the development of complex systems, both in terms of development and in terms of maintenance of deployed systems. Cost of software development and maintenance can also be very high. One approach to reducing costs and relieving this bottleneck is increasing the reuse of software designs and software components. A method for achieving such reuse is a software parts composition system. Such a system consists of a language for modeling software parts and their interfaces, a catalog of existing parts, an editor for combining parts, and a code generator that takes a specification and generates code for that application in the target language. The Advanced Software Development Workstation is intended to be an expert system shell designed to provide the capabilities of a software part composition system.

  19. Quality in Software Development: a pragmatic approach using metrics

    Directory of Open Access Journals (Sweden)

    Daniel Acton

    2014-06-01

    Full Text Available As long as software has been produced, there have been efforts to strive for quality in software products. In order to understand quality in software products, researchers have built models of software quality that rely on metrics in an attempt to provide a quantitative view of software quality. The aim of these models is to provide software producers with the capability to define and evaluate metrics related to quality and use these metrics to improve the quality of the software they produce over time. The main disadvantage of these models is that they require effort and resources to define and evaluate metrics from software projects. This article briefly describes some prominent models of software quality in the literature and continues to describe a new approach to gaining insight into quality in software development projects. A case study based on this new approach is described and results from the case study are discussed.

  20. Avionics Simulation, Development and Software Engineering

    Science.gov (United States)

    2002-01-01

    During this reporting period, all technical responsibilities were accomplished as planned. A close working relationship was maintained with personnel of the MSFC Avionics Department Software Group (ED14), the MSFC EXPRESS Project Office (FD31), and the Huntsville Boeing Company. Accomplishments included: performing special tasks; supporting Software Review Board (SRB), Avionics Test Bed (ATB), and EXPRESS Software Control Panel (ESCP) activities; participating in technical meetings; and coordinating issues between the Boeing Company and the MSFC Project Office.

  1. Detecting Coordination Problems in Collaborative Software Development Environments

    NARCIS (Netherlands)

    Amrit, Chintan Amrit; van Hillegersberg, Jos

    2008-01-01

    Software development is rarely an individual effort and generally involves teams of developers collaborating to generate good reliable code. Among the software code there exist technical dependencies that arise from software components using services from other components. The different ways of

  2. Automating the management of software projects in a developing it ...

    African Journals Online (AJOL)

    The resultant network-based software tool was developed on object-oriented technology using Java. The study established that good management practices may still be applied by the Nigerian software industry that lacks expertise in software management. Multi-site development approach facilitates large projects by using ...

  3. The Relevance of Software Development Education for Students

    Science.gov (United States)

    Liebenberg, Janet; Huisman, Magda; Mentz, Elsa

    2015-01-01

    Despite a widely-acknowledged shortage of software developers, and reports of a gap between industry needs and software education, the possible gap between students' needs and software development education has not been explored in detail. In their university education, students want to take courses and carry out projects that clearly relate to…

  4. Educational Affordances and Learning Design in Music Software Development

    Science.gov (United States)

    Cheng, Lee; Leong, Samuel

    2017-01-01

    Although music software has become increasingly affordable and widely adopted in today's classrooms, concerns have been raised about a lack of consideration for users' needs during the software development process. This paper examines intra- and inter-sectoral communication pertaining to software development and music education to shed light on…

  5. Developing software for and with reuse: an ontological approach

    NARCIS (Netherlands)

    Falbo, R.A.; Guizzardi, G.; Duarte, K.C.; Natali, A.C.C.

    2002-01-01

    Software reuse has been pointed as one of the most promising technique to deal with quality and productivity problems. To support reuse, software processes have to consider two facets: developing for reuse and developing with reuse. In this paper we present an ontology-based approach for software

  6. Persona Usage in Software Development: Advantages and Obstacles

    DEFF Research Database (Denmark)

    Billestrup, Jane; Stage, Jan; Nielsen, Lene

    2014-01-01

    The Personas technique has been promoted as a strong tool for providing software developers with a better understanding of the prospective users of their software. This paper reports from a questionnaire survey regarding knowledge about Personas and their usage in software development companies. ...

  7. Developing sustainable software solutions for bioinformatics by the " Butterfly" paradigm.

    Science.gov (United States)

    Ahmed, Zeeshan; Zeeshan, Saman; Dandekar, Thomas

    2014-01-01

    Software design and sustainable software engineering are essential for the long-term development of bioinformatics software. Typical challenges in an academic environment are short-term contracts, island solutions, pragmatic approaches and loose documentation. Upcoming new challenges are big data, complex data sets, software compatibility and rapid changes in data representation. Our approach to cope with these challenges consists of iterative intertwined cycles of development (" Butterfly" paradigm) for key steps in scientific software engineering. User feedback is valued as well as software planning in a sustainable and interoperable way. Tool usage should be easy and intuitive. A middleware supports a user-friendly Graphical User Interface (GUI) as well as a database/tool development independently. We validated the approach of our own software development and compared the different design paradigms in various software solutions.

  8. Aspect oriented software development and comparison with traditional development approaches

    OpenAIRE

    Fajdiga, Antonio

    2013-01-01

    Over the past few decades the advance of computer technology have undoubtedly increased the rate of information exchange. It progresses every day and thus communication across the globe is now done with ease, convinience, and speed.However, in tremendous contrast to its development years ago, it can be seen that computer technology, and moreover computer software development has changed a lot. It is why in the thesis, that you have before you, we concentrates around the problem of computer...

  9. Software Development Risk Management Model – A Goal Driven Approach

    OpenAIRE

    Islam, Shareeful

    2009-01-01

    Software development project is often faced with unanticipated problems which pose any potential risks within the development environment. Controlling these risks arises from both the technical and non-technical development components already from the early stages of the development is crucial to arrive at a successful project. Therefore, software development risk management is becoming recognized as a best practice in the software industry for reducing these risks before they occur. This the...

  10. Autonomous Aerobraking Development Software: Phase 2 Summary

    Science.gov (United States)

    Cianciolo, Alicia D.; Maddock, Robert W.; Prince, Jill L.; Bowes, Angela; Powell, Richard W.; White, Joseph P.; Tolson, Robert; O'Shaughnessy, Daniel; Carrelli, David

    2013-01-01

    NASA has used aerobraking at Mars and Venus to reduce the fuel required to deliver a spacecraft into a desired orbit compared to an all-propulsive solution. Although aerobraking reduces the propellant, it does so at the expense of mission duration, large staff, and DSN coverage. These factors make aerobraking a significant cost element in the mission design. By moving on-board the current ground-based tasks of ephemeris determination, atmospheric density estimation, and maneuver sizing and execution, a flight project would realize significant cost savings. The NASA Engineering and Safety Center (NESC) sponsored Phase 1 and 2 of the Autonomous Aerobraking Development Software (AADS) study, which demonstrated the initial feasibility of moving these current ground-based functions to the spacecraft. This paper highlights key state-of-the-art advancements made in the Phase 2 effort to verify that the AADS algorithms are accurate, robust and ready to be considered for application on future missions that utilize aerobraking. The advancements discussed herein include both model updates and simulation and benchmark testing. Rigorous testing using observed flight atmospheres, operational environments and statistical analysis characterized the AADS operability in a perturbed environment.

  11. Happy software developers solve problems better: psychological measurements in empirical software engineering.

    Science.gov (United States)

    Graziotin, Daniel; Wang, Xiaofeng; Abrahamsson, Pekka

    2014-01-01

    For more than thirty years, it has been claimed that a way to improve software developers' productivity and software quality is to focus on people and to provide incentives to make developers satisfied and happy. This claim has rarely been verified in software engineering research, which faces an additional challenge in comparison to more traditional engineering fields: software development is an intellectual activity and is dominated by often-neglected human factors (called human aspects in software engineering research). Among the many skills required for software development, developers must possess high analytical problem-solving skills and creativity for the software construction process. According to psychology research, affective states-emotions and moods-deeply influence the cognitive processing abilities and performance of workers, including creativity and analytical problem solving. Nonetheless, little research has investigated the correlation between the affective states, creativity, and analytical problem-solving performance of programmers. This article echoes the call to employ psychological measurements in software engineering research. We report a study with 42 participants to investigate the relationship between the affective states, creativity, and analytical problem-solving skills of software developers. The results offer support for the claim that happy developers are indeed better problem solvers in terms of their analytical abilities. The following contributions are made by this study: (1) providing a better understanding of the impact of affective states on the creativity and analytical problem-solving capacities of developers, (2) introducing and validating psychological measurements, theories, and concepts of affective states, creativity, and analytical-problem-solving skills in empirical software engineering, and (3) raising the need for studying the human factors of software engineering by employing a multidisciplinary viewpoint.

  12. Ragnarok: An Architecture Based Software Development Environment

    DEFF Research Database (Denmark)

    Christensen, Henrik Bærbak

    : A visualisation model where entities in a software architecture are organised geographically in a two-dimensional plane, their visual appearance determined by processing a subset of the data in the entities, and interaction with the project's underlying data performed by direct manipulation of the landscape...... Management Model: A software configuration management model where the abstractions and hierarchy of the logical aspect of software architecture forms the basis for version control and configuration management. The second main contribution is the Geographic Space Architecture Visualisation Model....... The main results from the three case studies are the following: The architectural software configuration management model is a natural and viable model for configuration management, at least for small- to medium-sized systems. The model's main assets are that it minimises the gap between the concepts used...

  13. Co-sourcing in software development offshoring

    DEFF Research Database (Denmark)

    Schlichter, Bjarne Rerup; Persson, John Stouby

    2013-01-01

    -sourcing shapes the perception and alleviation of the well-known risks related to offshoring is limited. We present a case study of how a certified CMMI-level 5 Danish software supplier approaches these risks in offshore co-sourcing. The paper explains how co-sourcing from a mature software company may shape......-taking by high attention to of the closely interrelated structure and technology components in terms of CMMI and the actors’ cohesion and integration in terms of Scrum....

  14. Development of a Software-Defined Radar

    Science.gov (United States)

    2017-10-01

    17 Appendix B. Software-Defined Radio Receiver Cascade Calculations 19 Appendix C. Spurious Free Dynamic Range (SFDR) Test Setup 23 Appendix D...frequency range of 50 MHz to 5.5 GHz. A description of the test setup for calculating SFDR is presented in Appendix C. 3. Software A 2-channel phase...then the data buffer will overflow and cause LabVIEW to crash . The indicator of the number of elements in the producer loop buffer should be monitored

  15. Formal methods in the development of safety critical software systems

    Energy Technology Data Exchange (ETDEWEB)

    Williams, L.G. [Software Engineering Research, Boulder, CO (United States)

    1991-11-15

    As the use of computers in critical control systems such as aircraft controls, medical instruments, defense systems, missile controls, and nuclear power plants has increased, concern for the safety of those systems has also grown. Much of this concern has focused on the software component of those computer-based systems. This is primarily due to historical experience with software systems that often exhibit larger numbers of errors than their hardware counterparts and the fact that the consequences of a software error may endanger human life, property, or the environment. A number of different techniques have been used to address the issue of software safety. Some are standard software engineering techniques aimed at reducing the number of faults in a software protect, such as reviews and walkthroughs. Others, including fault tree analysis, are based on identifying and reducing hazards. This report examines the role of one such technique, formal methods, in the development of software for safety critical systems. The use of formal methods to increase the safety of software systems is based on their role in reducing the possibility of software errors that could lead to hazards. The use of formal methods in the development of software systems is controversial. Proponents claim that the use of formal methods can eliminate errors from the software development process, and produce programs that are probably correct. Opponents claim that they are difficult to learn and that their use increases development costs unacceptably. This report discusses the potential of formal methods for reducing failures in safety critical software systems.

  16. Software Development Offshoring Competitiveness: A Case Study of ASEAN Countries

    Science.gov (United States)

    Bui, Minh Q.

    2011-01-01

    With the success of offshoring within the American software industry, corporate executives are moving their software developments overseas. The member countries of the Association of Southeast Asian Nations (ASEAN) have become a preferred destination. However, there is a lack of published studies on the region's software competitiveness in…

  17. Happy software developers solve problems better: psychological measurements in empirical software engineering

    Directory of Open Access Journals (Sweden)

    Daniel Graziotin

    2014-03-01

    Full Text Available For more than thirty years, it has been claimed that a way to improve software developers’ productivity and software quality is to focus on people and to provide incentives to make developers satisfied and happy. This claim has rarely been verified in software engineering research, which faces an additional challenge in comparison to more traditional engineering fields: software development is an intellectual activity and is dominated by often-neglected human factors (called human aspects in software engineering research. Among the many skills required for software development, developers must possess high analytical problem-solving skills and creativity for the software construction process. According to psychology research, affective states—emotions and moods—deeply influence the cognitive processing abilities and performance of workers, including creativity and analytical problem solving. Nonetheless, little research has investigated the correlation between the affective states, creativity, and analytical problem-solving performance of programmers. This article echoes the call to employ psychological measurements in software engineering research. We report a study with 42 participants to investigate the relationship between the affective states, creativity, and analytical problem-solving skills of software developers. The results offer support for the claim that happy developers are indeed better problem solvers in terms of their analytical abilities. The following contributions are made by this study: (1 providing a better understanding of the impact of affective states on the creativity and analytical problem-solving capacities of developers, (2 introducing and validating psychological measurements, theories, and concepts of affective states, creativity, and analytical-problem-solving skills in empirical software engineering, and (3 raising the need for studying the human factors of software engineering by employing a

  18. Embedded Software Development by means of Remote Prototyping

    OpenAIRE

    Cordemans, Piet; Van Landschoot, Sille; Boydens, Jeroen

    2011-01-01

    Modern software development strategies emphasize on iterative development, because shorter cycles deliver feedback on quality more quickly. However programming embedded software is considered too slow for this process. A technique called remote prototyping delegates hardware dependent calls to the effective target, while software is developed on host. A proof of concept was developed, which delivered first indications of added value of the technique. Furthermore a critical reflection is pr...

  19. Metrics. [measurement for effective software development and management

    Science.gov (United States)

    Mcgarry, Frank

    1991-01-01

    A development status evaluation is presented for practical software performance measurement, or 'metrics', in which major innovations have recently occurred. Metrics address such aspects of software performance as whether a software project is on schedule, how many errors can be expected from it, whether the methodology being used is effective and the relative quality of the software employed. Metrics may be characterized as explicit, analytical, and subjective. Attention is given to the bases for standards and the conduct of metrics research.

  20. Factors negatively influencing knowledge sharing in software development

    Directory of Open Access Journals (Sweden)

    Lucas T. Khoza

    2017-07-01

    Objective: This study seeks to identify factors that negatively influence knowledge sharing in software development in the developing country context. Method: Expert sampling as a subcategory of purposive sampling was employed to extract information, views and opinions from experts in the field of information and communication technology, more specifically from those who are involved in software development projects. Four Johannesburg-based software developing organisations listed on the Johannesburg Stock Exchange (JSE, South Africa, participated in this research study. Quantitative data were collected using an online questionnaire with closed-ended questions. Results: Findings of this research reveal that job security, motivation, time constraints, physiological factors, communication, resistance to change and rewards are core factors negatively influencing knowledge sharing in software developing organisations. Conclusions: Improved understanding of factors negatively influencing knowledge sharing is expected to assist software developing organisations in closing the gap for software development projects failing to meet the triple constraint of time, cost and scope.

  1. Mapping Social Network to Software Architecture to Detect Structure Clashes in Agile Software Development

    NARCIS (Netherlands)

    Amrit, Chintan Amrit; van Hillegersberg, Jos

    2007-01-01

    Software development is rarely an individual effort and generally involves teams of developers collaborating together in order to generate reliable code. Such collaborations require proper communication and regular coordination among the team members. In addition, coordination is required to sort

  2. Factors negatively influencing knowledge sharing in software development

    Directory of Open Access Journals (Sweden)

    Lucas T. Khoza

    2017-01-01

    Full Text Available Background: ‘Knowledge is power’ and software developing organisations are dependent on knowledge to achieve and maintain a competitive advantage. Subsequently, knowledge sharing is a key factor for modern software developing organisations to succeed in today’s competitive environment. For software developing organisations to reach their goals and objectives, knowledge sharing – and in particular the sharing of useful knowledge – needs to be targeted. To promote knowledge sharing, factors influencing knowledge sharing need to be identified and understood.Objective: This study seeks to identify factors that negatively influence knowledge sharing in software development in the developing country context.Method: Expert sampling as a subcategory of purposive sampling was employed to extract information, views and opinions from experts in the field of information and communication technology, more specifically from those who are involved in software development projects. Four Johannesburg-based software developing organisations listed on the Johannesburg Stock Exchange (JSE, South Africa, participated in this research study. Quantitative data were collected using an online questionnaire with closed-ended questions.Results: Findings of this research reveal that job security, motivation, time constraints, physiological factors, communication, resistance to change and rewards are core factors negatively influencing knowledge sharing in software developing organisations.Conclusions: Improved understanding of factors negatively influencing knowledge sharing is expected to assist software developing organisations in closing the gap for software development projects failing to meet the triple constraint of time, cost and scope.

  3. Development of a Data Acquisition Software for the CULTASK Experiment

    Science.gov (United States)

    Lee, Soohyung

    2017-10-01

    Axion is a candidate of dark matter, and is a consequence of a solution to the strong CP problem. CULTASK (CAPP Ultra-Low Temperature Axion Search in Korea) is an axion search experiment which is being developed in Korea. As a part of the project, homegrown software, which governs the data acquisition and control systems, has been developed. The software governs the data acquisition as well as equipment control. In this proceeding, the development of the software is discussed.

  4. RISK MANAGEMENT IN CITIZEN ORIENTED INNOVATIVE SOFTWARE DEVELOPMENT PROJECTS

    OpenAIRE

    Emanuel Herteliu; Mihai Liviu Despa

    2014-01-01

    This paper tackles the subject of risk management in the specific context of citizen oriented innovative software development projects. Research hypotheses are enunciated. Research standards and methodology are defined. Using data collected from specialized scientific literature, the risk management issue is highlighted as an important aspect of fighting software development projects failure. Methods for identifying risk in innovative software development projects are submitted for debate. Ri...

  5. Requirements engineering and management for software development projects

    CERN Document Server

    Chemuturi, Murali

    2012-01-01

    Requirements Engineering and Management for Software Development Projects presents a complete guide on requirements for software development including engineering, computer science and management activities. It is the first book to cover all aspects of requirements management in software development projects. This book introduces the understanding of the requirements, elicitation and gathering, requirements analysis, verification and validation of the requirements, establishment of requirements, different methodologies in brief, requirements traceability and change management among other topic

  6. Software cost estimation, benchmarking, and risk assessment the software decision-makers' guide to predictable software development

    CERN Document Server

    Trendowicz, Adam

    2012-01-01

    Software effort estimation is a key element of software project planning and management. Yet, in industrial practice, the important role of effort estimation is often underestimated and/or misunderstood. In this book, Adam Trendowicz presents the CoBRA method (an abbreviation for Cost Estimation, Benchmarking, and Risk Assessment) for estimating the effort required to successfully complete a software development project, which uniquely combines human judgment and measurement data in order to systematically create a custom-specific effort estimation model. CoBRA goes far beyond simply predictin

  7. An Investigation of an Open-Source Software Development Environment in a Software Engineering Graduate Course

    Science.gov (United States)

    Ge, Xun; Huang, Kun; Dong, Yifei

    2010-01-01

    A semester-long ethnography study was carried out to investigate project-based learning in a graduate software engineering course through the implementation of an Open-Source Software Development (OSSD) learning environment, which featured authentic projects, learning community, cognitive apprenticeship, and technology affordances. The study…

  8. Exploring the Role of Social Software in Global Software Development Projects

    DEFF Research Database (Denmark)

    Giuffrida, Rosalba; Dittrich, Y.

    2011-01-01

    We present a PhD project that investigates the use of Social Software (SoSo) in Global Software Development (GSD) teams. Since SoSo in unstructured and informal in its own nature, we explore how informal communication, which is challenging in GSD, is supported by SoSo in distributed teams and how...

  9. CHIME: A Metadata-Based Distributed Software Development Environment

    National Research Council Canada - National Science Library

    Dossick, Stephen E; Kaiser, Gail E

    2005-01-01

    We introduce CHIME, the Columbia Hypermedia IMmersion Environment, a metadata-based information environment, and describe its potential applications for internet and intranet-based distributed software development...

  10. Development of software for handling ship's pharmacy.

    Science.gov (United States)

    Nittari, Giulio; Peretti, Alessandro; Sibilio, Fabio; Ioannidis, Nicholas; Amenta, Francesco

    2016-01-01

    Ships are required to carry a given amount of medicinal products and medications depending on the flag and the type of vessel. These medicines are stored in the so called ship's "medicine chest" or more properly - a ship pharmacy. Owing to the progress of medical sciences and to the increase in the mean age of seafarers employed on board ships, the number of pharmaceutical products and medical devices required by regulations to be carried on board ships is increasing. This may make handling of the ship's medicine chest a problem primarily on large ships sailing on intercontinental routes due to the difficulty in identifying the correspondence between medicines obtained abroad with those available at the national market. To minimise these problems a tool named Pharmacy Ship (acronym: PARSI) has been developed. The application PARSI is based on a database containing the information about medicines and medical devices required by different countries regulations. In the first application the system was standardised to comply with the Italian regulations issued on the 1st October, 2015 which entered into force on the 18 January 2016. Thanks to PARSI it was possible to standardize the inventory procedures, facilitate the work of maritime health authorities and make it easier for the crew, not professional in the field, to handle the 'medicine chest' correctly by automating the procedures for medicines management. As far as we know there are no other similar tools available at the moment. The application of the software, as well as the automation of different activities, currently carried out manually, will help manage (qualitatively and quantitatively) the ship's pharmacy. The system developed in this study has proved to be an effective tool which serves to guarantee the compliance of the ship pharmacy with regulations of the flag state in terms of medicinal products and medications. Sharing the system with the Telemedical Maritime Assistance Service may result in

  11. Development of a New VLBI Data Analysis Software

    Science.gov (United States)

    Bolotin, Sergei; Gipson, John M.; MacMillan, Daniel S.

    2010-01-01

    We present an overview of a new VLBI analysis software under development at NASA GSFC. The new software will replace CALC/SOLVE and many related utility programs. It will have the capabilities of the current system as well as incorporate new models and data analysis techniques. In this paper we give a conceptual overview of the new software. We formulate the main goals of the software. The software should be flexible and modular to implement models and estimation techniques that currently exist or will appear in future. On the other hand it should be reliable and possess production quality for processing standard VLBI sessions. Also, it needs to be capable of processing observations from a fully deployed network of VLBI2010 stations in a reasonable time. We describe the software development process and outline the software architecture.

  12. Designing Project Management for Global Software Development

    DEFF Research Database (Denmark)

    Tjørnehøj, Gitte; B. Balogh, Maria; Iversen, Cathrine

    2014-01-01

    of distributed software teams, based on a practice study and informed by well-known theories. Our work pinpoints the difficulties of handling the vital informal processes in distributed collaboration that are so vulnerable because the distances risk detaining their growth and increasing their decay rate...

  13. Trust in Co-sourced Software Development

    DEFF Research Database (Denmark)

    Schlichter, Bjarne Rerup; Persson, John Stouby

    2014-01-01

    . We present a case study of how the co-sourcing relationship between a certified CMMI-level 5 Danish software company and an offshoring supplier can be conceptualized as an Abstract System. An Abstract System is a dis-embedded social system (such as banking) that is trusted despite lack of detailed...

  14. A designerly methodology for software development

    NARCIS (Netherlands)

    Du Bois, E.

    2013-01-01

    This PhD researches the domain of industrial design engineering starting from the strong technological evolutions and changing economic, social and ecological needs. Our current products are not only build from hardware components, but are a complex mix of hardware, software and services (in

  15. Environmental Control System Software & Hardware Development

    Science.gov (United States)

    Vargas, Daniel Eduardo

    2017-01-01

    ECS hardware: (1) Provides controlled purge to SLS Rocket and Orion spacecraft. (2) Provide mission-focused engineering products and services. ECS software: (1) NASA requires Compact Unique Identifiers (CUIs); fixed-length identifier used to identify information items. (2) CUI structure; composed of nine semantic fields that aid the user in recognizing its purpose.

  16. The benefits of SOLID in software development

    CERN Multimedia

    CERN. Geneva

    2015-01-01

    In the talk, the SOLID principles will be presented, every one of them will be explained and some examples will be given and I I will tell why should we use every one of them to improve the quality of our software as well its maintainability and extensibility.

  17. Understanding Green Software Development: A Conceptual Framework

    NARCIS (Netherlands)

    Ardito, Luca; Procaccianti, Giuseppe; Torchiano, Marco; Vetrò, Antonio

    2015-01-01

    The energy efficiency of IT has become one of the hottest topics in the last few years. The problem has been typically addressed by hardware manufacturers and designers, but recently the attention of industry and academia has shifted to the role of software for IT sustainability. Writing

  18. Requisite Information Collaboration and Distributed Knowledge Management in Software Development

    DEFF Research Database (Denmark)

    Petersen, Mogens K.; Bjørn, Pernille; Frank, L.

    The paper suggests a framework advocating an integrated approach to software development stipulating the interconnection between Design, Organization and Business value networks (DOB). These three focus areas span collaborative development processes applying a range of facilitating tools, including...... of knowledge management tools in software development. The paper does not represent the viewpoint of SIG but outline our framework and major research questions....

  19. Framework Based Guidance Navigation and Control Flight Software Development

    Science.gov (United States)

    McComas, David

    2007-01-01

    This viewgraph presentation describes NASA's guidance navigation and control flight software development background. The contents include: 1) NASA/Goddard Guidance Navigation and Control (GN&C) Flight Software (FSW) Development Background; 2) GN&C FSW Development Improvement Concepts; and 3) GN&C FSW Application Framework.

  20. Applying Quality Costs in a Software Development Environment

    Directory of Open Access Journals (Sweden)

    I.P. Hollingsworth

    1999-05-01

    Full Text Available This paper shows how Quality Costs can be a measure of software quality. The relationship between Quality Costs and other software quality metrics is briefly explained, and software development oriented versions of the two principal Quality Cost models are described. Finally the paper discusses the major issues involved in setting up a software Quality Cost programme. The concepts are based on previous research on Quality Costs in manufacturing, coupled with work on software metrics and the work currently being undertaken by the authors in a number of industries.

  1. Guidance and Control Software Project Data - Volume 2: Development Documents

    Science.gov (United States)

    Hayhurst, Kelly J. (Editor)

    2008-01-01

    The Guidance and Control Software (GCS) project was the last in a series of software reliability studies conducted at Langley Research Center between 1977 and 1994. The technical results of the GCS project were recorded after the experiment was completed. Some of the support documentation produced as part of the experiment, however, is serving an unexpected role far beyond its original project context. Some of the software used as part of the GCS project was developed to conform to the RTCA/DO-178B software standard, "Software Considerations in Airborne Systems and Equipment Certification," used in the civil aviation industry. That standard requires extensive documentation throughout the software development life cycle, including plans, software requirements, design and source code, verification cases and results, and configuration management and quality control data. The project documentation that includes this information is open for public scrutiny without the legal or safety implications associated with comparable data from an avionics manufacturer. This public availability has afforded an opportunity to use the GCS project documents for DO-178B training. This report provides a brief overview of the GCS project, describes the 4-volume set of documents and the role they are playing in training, and includes the development documents from the GCS project. Volume 2 contains three appendices: A. Guidance and Control Software Development Specification; B. Design Description for the Pluto Implementation of the Guidance and Control Software; and C. Source Code for the Pluto Implementation of the Guidance and Control Software

  2. Software Engineering Research/Developer Collaborations in 2005

    Science.gov (United States)

    Pressburger, Tom

    2006-01-01

    In CY 2005, three collaborations between software engineering technology providers and NASA software development personnel deployed three software engineering technologies on NASA development projects (a different technology on each project). The main purposes were to benefit the projects, infuse the technologies if beneficial into NASA, and give feedback to the technology providers to improve the technologies. Each collaboration project produced a final report. Section 2 of this report summarizes each project, drawing from the final reports and communications with the software developers and technology providers. Section 3 indicates paths to further infusion of the technologies into NASA practice. Section 4 summarizes some technology transfer lessons learned. Also included is an acronym list.

  3. Digital Educational Games: Methodologies for Development and Software Quality

    OpenAIRE

    Aslan, Serdar

    2016-01-01

    Development of a game in the form of software for game-based learning poses significant technical challenges for educators, researchers, game designers, and software engineers. The game development consists of a set of complex processes requiring multi-faceted knowledge in multiple disciplines such as digital graphic design, education, gaming, instructional design, modeling and simulation, psychology, software engineering, visual arts, and the learning subject area. Planning and managing such...

  4. Development of multifunctional software for business operations in SMEs

    Directory of Open Access Journals (Sweden)

    Berić Ivana M.

    2016-01-01

    Full Text Available This paper presents the web-oriented software solution focused on supporting the efficient management of operations and projects in SMEs. The development of this software is treated as a separate project and has used agile software development methodologies and specific principles and project management solutions to deliver product in the desired time and in accordance with the requirements of the client.

  5. Usability challenges in an Ethiopian software development organization

    DEFF Research Database (Denmark)

    Teka, Degif; Dittrich, Yvonne; Kifle, Mesfin

    2016-01-01

    Usability and user centered design (UCD) are central to software development. In developing countries, the gap between IT development and the local use situation is larger than in western countries. However, usability is neither well addressed in software practice nor at the policy making level...... in Ethiopia. Software practitioners focus on functional requirements, meeting deadlines and budget. The software development industry in Ethiopia is in its early stage. The article aims at understanding usability practices in an Ethiopian software development company. Developers, system analysts, product...... configuration, their experience, cultural knowledge and common sense regarding the users' situation guided the design. Prototypes and fast delivery of working versions helped in getting user feedback even if early user focus proved to be a challenge as communication between developers and users suffered from...

  6. Direct Integration: Training Software Developers to Conduct Usability Evaluations

    DEFF Research Database (Denmark)

    Skov, Mikael B.; Stage, Jan

    2008-01-01

    is based on an empirical study where 36 teams with a total of 234 first-year university students on software development and design educations were trained in a simple approach for user-based website usability testing that was taught in a 40 hour course. This approach supported them in planning, conducting......Many improvements of the interplay between usability evaluation and software development rely either on better methods for conducting usability evaluations or on better formats for presenting evaluation results in ways that are useful for software designers and developers. Both approaches involve...... a complete division of work between developers and evaluators, which is an undesirable complexity for many software development projects. This paper takes a different approach by exploring to what extent software developers and designers can be trained to carry out their own usability evaluations. The paper...

  7. A Capstone Course on Agile Software Development Using Scrum

    Science.gov (United States)

    Mahnic, V.

    2012-01-01

    In this paper, an undergraduate capstone course in software engineering is described that not only exposes students to agile software development, but also makes it possible to observe the behavior of developers using Scrum for the first time. The course requires students to work as Scrum Teams, responsible for the implementation of a set of user…

  8. Development of Cad Software for Wheel Chair Design | Ayodeji ...

    African Journals Online (AJOL)

    Anthropometric data of Nigerian paraplegics was used to design wheel chair for the paraplegics. This was done by developing suitable software using Visual Basic, AutoCAD, Access and Corel- Draw programs. The software developed is capable of designing an ergonomically viable wheelchair for any category of ...

  9. Towards an Interoperability Ontology for Software Development Tools

    Science.gov (United States)

    2003-03-01

    an ontology allowing interoperability and communication between different software development tools. Lenci defines ontologies as a core ingredient ...Variable, Market Segment, Market Research, Brand Image, Feature, Need, Market Need, Promotion, Competitor. Time Time Line, Time Interval, Time...Software Development Tools,” Draft PhD Dessertation , Computer Science Department, Naval Postgraduate School, Monterey California, 2003. [RATI02

  10. Training Software Developers and Designers to Conduct Usability Evaluations

    Science.gov (United States)

    Skov, Mikael Brasholt; Stage, Jan

    2012-01-01

    Many efforts to improve the interplay between usability evaluation and software development rely either on better methods for conducting usability evaluations or on better formats for presenting evaluation results in ways that are useful for software designers and developers. Both of these approaches depend on a complete division of work between…

  11. Product assurance policies and procedures for flight dynamics software development

    Science.gov (United States)

    Perry, Sandra; Jordan, Leon; Decker, William; Page, Gerald; Mcgarry, Frank E.; Valett, Jon

    1987-01-01

    The product assurance policies and procedures necessary to support flight dynamics software development projects for Goddard Space Flight Center are presented. The quality assurance and configuration management methods and tools for each phase of the software development life cycles are described, from requirements analysis through acceptance testing; maintenance and operation are not addressed.

  12. Bioconductor: open software development for computational biology and bioinformatics

    DEFF Research Database (Denmark)

    Gentleman, R.C.; Carey, V.J.; Bates, D.M.

    2004-01-01

    The Bioconductor project is an initiative for the collaborative creation of extensible software for computational biology and bioinformatics. The goals of the project include: fostering collaborative development and widespread use of innovative software, reducing barriers to entry into interdisci......The Bioconductor project is an initiative for the collaborative creation of extensible software for computational biology and bioinformatics. The goals of the project include: fostering collaborative development and widespread use of innovative software, reducing barriers to entry...... into interdisciplinary scientific research, and promoting the achievement of remote reproducibility of research results. We describe details of our aims and methods, identify current challenges, compare Bioconductor to other open bioinformatics projects, and provide working examples....

  13. Domain Specific Languages for Efficient Satellite Control Software Development

    Science.gov (United States)

    Wortmann, Andreas; Beet, Martin

    2016-08-01

    We present the motivation and an approach for the efficient development of satellite control software (flight software, onboard software) based on domain specific languages. Significant technological advances in the field of language workbenches have enabled us to develop extensions to the C programming language specific to the needs of satellite flight software. The approach is very promising as it combines the flexibility and efficiency of the C language with high-level abstractions known from modeling-tools and allows for additional adaptation specific to the space domain.

  14. A Conceptual Framework for Lean Regulated Software Development

    DEFF Research Database (Denmark)

    Cawley, Oisin; Richardson, Ita; Wang, Xiaofeng

    2015-01-01

    A growing number of companies are discovering that their software development processes must be in compliance with some form of regulation. This is particularly so when it comes to safety-critical or business-critical systems such as Automotive Software, Robotics, Medical Devices or Financial...... Management systems. These regulations affect the software development process itself in various forms. Furthermore , much attention is being given to ways of improving the efficiency of businesses, for example, by adopting lean principles. This raises the question for how to adopt lean principles...... for software development within a regulated environment? This poster presents the results of our empirical research into lean and regulated software development. Built from a combination of data sources, we have developed a conceptual framework comprising five primary components. In addition the relationships...

  15. Lean principles applied to software development – avoiding waste

    Directory of Open Access Journals (Sweden)

    Ionel NAFTANAILA

    2009-12-01

    Full Text Available Under the current economic conditions many organizations strive to continue the trend towards adopting better software development processes, in order to take advantage of the numerous benefits that these can offer. Those benefits include quicker return on investment, better software quality, and higher customer satisfaction. To date, however, there is little body of research that can guide organizations in adopting modern software development practices, especially when it comes to Lean thinking and principles. To address this situation, the current paper identifies and structures the main wastes (or muda in Lean terms in software development as described by Lean principles, in an attempt to bring into researchers’ and practitioners’ attention Lean Software Development, a modern development methodology based on well-established practices such as Lean Manufacturing or Toyota Production System.

  16. Section 508 Electronic Information Accessibility Requirements for Software Development

    Science.gov (United States)

    Ellis, Rebecca

    2014-01-01

    Section 508 Subpart B 1194.21 outlines requirements for operating system and software development in order to create a product that is accessible to users with various disabilities. This portion of Section 508 contains a variety of standards to enable those using assistive technology and with visual, hearing, cognitive and motor difficulties to access all information provided in software. The focus on requirements was limited to the Microsoft Windows® operating system as it is the predominant operating system used at this center. Compliance with this portion of the requirements can be obtained by integrating the requirements into the software development cycle early and by remediating issues in legacy software if possible. There are certain circumstances with software that may arise necessitating an exemption from these requirements, such as design or engineering software using dynamically changing graphics or numbers to convey information. These exceptions can be discussed with the Section 508 Coordinator and another method of accommodation used.

  17. Being Geek The Software Developer's Career Handbook

    CERN Document Server

    Lopp, Michael

    2010-01-01

    As a software engineer, you recognize at some point that there's much more to your career than dealing with code. Is it time to become a manager? Tell your boss he's a jerk? Join that startup? Author Michael Lopp recalls his own make-or-break moments with Silicon Valley giants such as Apple, Netscape, and Symantec in Being Geek -- an insightful and entertaining book that will help you make better career decisions. With more than 40 standalone stories, Lopp walks through a complete job life cycle, starting with the job interview and ending with the realization that it might be time to find an

  18. Software development with C++ maximizing reuse with object technology

    CERN Document Server

    Nielsen, Kjell

    2014-01-01

    Software Development with C++: Maximizing Reuse with Object Technology is about software development and object-oriented technology (OT), with applications implemented in C++. The basis for any software development project of complex systems is the process, rather than an individual method, which simply supports the overall process. This book is not intended as a general, all-encompassing treatise on OT. The intent is to provide practical information that is directly applicable to a development project. Explicit guidelines are offered for the infusion of OT into the various development phases.

  19. Empirical Studies on the Use of Social Software in Global Software Development - a Systematic Mapping Study

    DEFF Research Database (Denmark)

    Giuffrida, Rosalba; Dittrich, Yvonne

    2013-01-01

    of empirical studies on the usage of SoSo are available in related fields, there exists no comprehensive overview of what has been investigated to date across them. Objective: The aim of this review is to map empirical studies on the usage of SoSo in Software Engineering projects and in distributed teams...... of supporting GSD teams. Four emerging themes in global software engineering were identified: the appropriation and development of usage structures; understanding how an ecology of communication channels and tools are used by teams; the role played by SoSo either as a subtext or as an explicit goal; and finally......Background: In Global Software Development (GSD), informal communication and knowledge sharing play an important role. Social Software (SoSo) has the potential to support and foster this key responsibility. Research on the use of SoSo in GSD is still at an early stage: although a number...

  20. Supporting Usability Engineering in Small Software Development Organizations

    DEFF Research Database (Denmark)

    Bornoe, Nis; Stage, Jan

    2013-01-01

    Despite an interest and use of different usability engineering methods small software development organizations find it challenging to implement usability engineering into the software development process. We present the results from a study about usability engineering in practice. Through a series...... of semistructured interviews we want to get an understanding of how usability is implemented into the organizations and how it’s practiced in reality. We found that the developers found it problematic to combine agile software development methods with classic usability engineering methods. A lack of solid usability...... engineering into the organizations....

  1. Empirical Studies of Agile Software Development to Learn Programming Skills

    Directory of Open Access Journals (Sweden)

    Yasuyo Kofune

    2014-06-01

    Full Text Available This paper presents a programming education support method based on Agile Development that encourages and builds on communication between students. Through mutual discussion, students using our approach transform their ideas into software and cooperate to write a program. The students complete the software through repetition and programming. Before completing the software program, the students learn to solve problems by working together. The students are encouraged to think and share ideas, and gain experience writing software. With this approach, students not only learn how to write programs, but also increase their logical thinking, problem-solving, and communication skills.

  2. A Padawan Programmer's Guide to Developing Software Libraries

    DEFF Research Database (Denmark)

    Yurkovich, James T.; Yurkovich, Benjamin J.; Dräger, Andreas

    2017-01-01

    With the rapid adoption of computational tools in the life sciences, scientists are taking on the challenge of developing their own software libraries and releasing them for public use. This trend is being accelerated by popular technologies and platforms, such as GitHub, Jupyter, R......, based on our own experiences, for developing software libraries along with real-world examples to help provide context for scientists who are learning about these concepts for the first time. While we can only scratch the surface of these topics, we hope that this article will act as a guide....../Shiny, that make it easier to develop scientific software and by open-source licenses that make it easier to release software. But how do you build a software library that people will use? And what characteristics do the best libraries have that make them enduringly popular? Here, we provide a reference guide...

  3. Technology-driven dietary assessment: a software developer's perspective.

    Science.gov (United States)

    Buday, R; Tapia, R; Maze, G R

    2014-01-01

    Dietary researchers need new software to improve nutrition data collection and analysis, although the creation of information technology is difficult. Software development projects may be unsuccessful as a result of an inadequate understanding of needs, management problems, technology barriers or legal hurdles. Cost over-runs and schedule delays are common. Barriers facing scientific researchers developing software include workflow, cost, schedule and team issues. Different methods of software development and the role that intellectual property rights play are discussed. A dietary researcher must carefully consider multiple issues to maximise the likelihood of success when creating new software. © 2012 The Authors. Journal of Human Nutrition and Dietetics © 2012 The British Dietetic Association Ltd.

  4. Software Development Methods and Tools: a New Zealand study

    Directory of Open Access Journals (Sweden)

    Chris Phillips

    2005-05-01

    Full Text Available This study is a more detailed follow-up to a preliminary investigation of the practices of software engineers in New Zealand. The focus of this study is on the methods and tools used by software developers in their current organisation. The project involved detailed questionnaires being piloted and sent out to several hundred software developers. A central part of the research involved the identification of factors affecting the use and take-up of existing software development tools in the workplace. The full spectrum of tools from fully integrated I-CASE tools to individual software applications, such as drawing tools was investigated. This paper describes the project and presents the findings.

  5. Frameworks for user - developer interactions in a software ...

    African Journals Online (AJOL)

    The dependence of today's society on Information and Communications technology has necessitated the need for software project managers to strive for continuous process improvement. A major challenge faced by most software project managers especially in developing countries however centers on effective ...

  6. Development Of Software To Recognize Parts Of Plants

    Science.gov (United States)

    Despain, Ronald R.; Tharpe, Roy, Jr.; Davis, Leon; Hauss, Sharon; Shawaga, Larry; Biro, Ron

    1993-01-01

    Report describes first phase in development of digital image-processing subsystem recognizing parts of plants. Subsystem part of robotic system tending and harvesting plants in automated plant-growth chamber. Initial focus on image-processing software that distinguishes among seed heads, stems, and leaves of wheat plants and further distinguishes between these parts and background. Software adaptable to other types of plants.

  7. TAPSOFT'95: Theory and Practice of Software Development

    DEFF Research Database (Denmark)

    theoretical computer scientists and software engineers (researchers and practitioners) with a view to discussing how formal methods can usefully be applied in software development. The volume contains seven invited papers, among them one by Vaugham Pratt on the recently revealed bug in the Pentium chip...

  8. An Ontology for a TripTych Formal Software Development

    DEFF Research Database (Denmark)

    Bjørner, Dines

    2003-01-01

    An ontology, ie., a formalised set of strongly interrelated definitions, is given for an approach to software development that spans domain engineering, requirements engineering and software design - and which is otherwise based on a judicious use of both informal and formal, mathematics...

  9. Benefits of reverse engineering technologies in software development makerspace

    Directory of Open Access Journals (Sweden)

    Aabidi M.H.

    2017-01-01

    Full Text Available In the recent decades, the amount of data produced by scientific, engineering, and life science applications has increased with several orders of magnitude. In parallel with this development, the applications themselves have become increasingly complex in terms of functionality, structure, and behavior. In the same time, development and production cycles of such applications exhibit a tendency of becoming increasingly shorter, due to factors such as market pressure and rapid evolution of supporting and enabling technologies. As a consequence, an increasing fraction of the cost of creating new applications and manufacturing processes shifts from the creation of new artifacts to the adaption of existing ones. A key component of this activity is the understanding of the design, operation, and behavior of existing manufactured artifacts, such as software code bases, hardware systems, and mechanical assemblies. For instance, in the software industry, it is estimated that maintenance costs exceed 80% of the total costs of a software product's lifecycle, and software understanding accounts for as much as half of these maintenance costs. To facilitate the software development process, it would be ideal to have tools that automatically generate or help to generate UML (Unified Modeling Language models from source code. Reverse engineering the software architecture from source code provides a valuable service to software practitioners. Case tools implementing MDA and reverse-engineering constitute an important opportunity of software development engineers. So MDA and reverse engineering is an important key witch make makerspace more productive and more efficient.

  10. Optimising software development policies for evolutionary system requirements

    NARCIS (Netherlands)

    Noppen, J.A.R.; Tekinerdogan, B.; Aksit, Mehmet; Glandrup, Maurice; Nicola, V.F.

    2002-01-01

    Anticipating future software requirements might support the evolution of software systems and as such reduce the cost of development and maintenance in due time. Unfortunately identifying the right set of evolution scenarios is difficult due to the uncertainty of occurrence of future requirements.

  11. A Study On Traditional And Evolutionary Software Development Models

    Directory of Open Access Journals (Sweden)

    Kamran Rasheed

    2017-07-01

    Full Text Available Today Computing technologies are becoming the pioneers of the organizations and helpful in individual functionality i.e. added to computing device we need to add softwares. Set of instruction or computer program is known as software. The development of software is done through some traditional or some new or evolutionary models. Software development is becoming a key and a successful business nowadays. Without software all hardware is useless. Some collective steps that are performed in the development of these are known as Software development life cycle SDLC. There are some adaptive and predictive models for developing software. Predictive mean already known like WATERFALL Spiral Prototype and V-shaped models while Adaptive model include agile Scrum. All methodologies of both adaptive and predictive have their own procedure and steps. Predictive are Static and Adaptive are dynamic mean change cannot be made to the predictive while adaptive have the capability of changing. The purpose of this study is to get familiar with all these and discuss their uses and steps of development. This discussion will be helpful in deciding which model they should use in which circumstance and what are the development step including in each model.

  12. Estimating Software-Development Costs With Greater Accuracy

    Science.gov (United States)

    Baker, Dan; Hihn, Jairus; Lum, Karen

    2008-01-01

    COCOMOST is a computer program for use in estimating software development costs. The goal in the development of COCOMOST was to increase estimation accuracy in three ways: (1) develop a set of sensitivity software tools that return not only estimates of costs but also the estimation error; (2) using the sensitivity software tools, precisely define the quantities of data needed to adequately tune cost estimation models; and (3) build a repository of software-cost-estimation information that NASA managers can retrieve to improve the estimates of costs of developing software for their project. COCOMOST implements a methodology, called '2cee', in which a unique combination of well-known pre-existing data-mining and software-development- effort-estimation techniques are used to increase the accuracy of estimates. COCOMOST utilizes multiple models to analyze historical data pertaining to software-development projects and performs an exhaustive data-mining search over the space of model parameters to improve the performances of effort-estimation models. Thus, it is possible to both calibrate and generate estimates at the same time. COCOMOST is written in the C language for execution in the UNIX operating system.

  13. Development of Agile Practices in Romanian Software Community

    Directory of Open Access Journals (Sweden)

    Eduard BUDACU

    2017-01-01

    Full Text Available Agile Software Development (ASD promotes flexibility to change and emphasis the importance of individuals and interactions in producing software. The study presents the development of agile practices in Romanian software community. A literature review is conducted and the main agile methods are described. The characteristics of Romanian ICT sector is presented in relation with agile methodology. Practices are identified by a survey and an analysis on the groups of interests formed on Meetup website is performed. Future directions and development of agile practices is evaluated.

  14. Continuous Integration, essential piece in the software development.

    Directory of Open Access Journals (Sweden)

    Eduardo Aranda

    2012-12-01

    Full Text Available Continuous Integration is a practice proposed by eXtreme Programming, one of the most popular agile methodologies, which implementation involves automating one of the most heavy and complex task to predict the process of integration in software development. In this work it is described general aspects related to the practice of Continuous Integration in software development, so it is presented the feasibility of its application due the benefits it provides and the risks that can be mitigated with the use of it. It constitutes a theoretical basis for understanding and showing that this practice is an essential piece for software development.

  15. Pragmatic quality metrics for evolutionary software development models

    Science.gov (United States)

    Royce, Walker

    1990-01-01

    Due to the large number of product, project, and people parameters which impact large custom software development efforts, measurement of software product quality is a complex undertaking. Furthermore, the absolute perspective from which quality is measured (customer satisfaction) is intangible. While we probably can't say what the absolute quality of a software product is, we can determine the relative quality, the adequacy of this quality with respect to pragmatic considerations, and identify good and bad trends during development. While no two software engineers will ever agree on an optimum definition of software quality, they will agree that the most important perspective of software quality is its ease of change. We can call this flexibility, adaptability, or some other vague term, but the critical characteristic of software is that it is soft. The easier the product is to modify, the easier it is to achieve any other software quality perspective. This paper presents objective quality metrics derived from consistent lifecycle perspectives of rework which, when used in concert with an evolutionary development approach, can provide useful insight to produce better quality per unit cost/schedule or to achieve adequate quality more efficiently. The usefulness of these metrics is evaluated by applying them to a large, real world, Ada project.

  16. Ideas for a Cooperative Software Development for Future GGOS Stations

    Science.gov (United States)

    Neidhardt, A.; Ettl, M.

    2012-12-01

    The development of software is a creative process, which offers a huge degree of freedom. In scientific fields a lot of researchers develop their own software for specific needs. Everyone has their own preferences and backgrounds regarding the used programming languages, styles, and platforms. This complexity results in software which is not always directly usable by others in the communities. In addition, the software is often error-prone as hidden bugs are not always revealed. Therefore ideas came up to solve these problems at the Geodetic Observatory Wettzell. The results were coding layouts and policies, documentation strategies, the usage of version control, and a consistent process of continuous integration. Within this, the discussed quality factors can define quality metrics which help to quantize code quality. The resulting software is a repository of tested modules that can be used in different programs for the geodetic space techniques. This is one possible contribution to future GGOS stations.

  17. Developing a TTCN-3 Test Harness for Legacy Software

    DEFF Research Database (Denmark)

    Okika, Joseph C.; Ravn, Anders Peter; Siddalingaiah, Lokesh

    2006-01-01

    We describe a prototype test harness for an embedded system which is the control software for a modern marine diesel engine. The operations of such control software requires complete certification. We adopt Testing and Test Control Notation (TTCN-3) to define test cases for this purpose. The main...... challenge in developing the test harness is to interface a generic test driver to the legacy software and provide a suitable interface for test engineers. The main contribution of this paper is a demonstration of a suitable design for such a test harness. It includes: a TTCN-3 test driver in C++, the legacy...... control software in C, a Graphical User Interface (GUI) and the connectors in Java. Our experience shows that it is feasible to use TTCN-3 in developing a test harness for a legacy software for an embedded system, even when it involves different heterogeneous components....

  18. COSTMODL: An automated software development cost estimation tool

    Science.gov (United States)

    Roush, George B.

    1991-01-01

    The cost of developing computer software continues to consume an increasing portion of many organizations' total budgets, both in the public and private sector. As this trend develops, the capability to produce reliable estimates of the effort and schedule required to develop a candidate software product takes on increasing importance. The COSTMODL program was developed to provide an in-house capability to perform development cost estimates for NASA software projects. COSTMODL is an automated software development cost estimation tool which incorporates five cost estimation algorithms including the latest models for the Ada language and incrementally developed products. The principal characteristic which sets COSTMODL apart from other software cost estimation programs is its capacity to be completely customized to a particular environment. The estimation equations can be recalibrated to reflect the programmer productivity characteristics demonstrated by the user's organization, and the set of significant factors which effect software development costs can be customized to reflect any unique properties of the user's development environment. Careful use of a capability such as COSTMODL can significantly reduce the risk of cost overruns and failed projects.

  19. Workshop on Software Development Tools for Petascale Computing

    Energy Technology Data Exchange (ETDEWEB)

    Vetter, Jeffrey [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Georgia Inst. of Technology, Atlanta, GA (United States)

    2007-08-01

    Petascale computing systems will soon be available to the DOE science community. Recent studies in the productivity of HPC platforms point to better software environments as a key enabler to science on these systems. To prepare for the deployment and productive use of these petascale platforms, the DOE science and general HPC community must have the software development tools, such as performance analyzers and debuggers that meet application requirements for scalability, functionality, reliability, and ease of use. In this report, we identify and prioritize the research opportunities in the area of software development tools for high performance computing. To facilitate this effort, DOE hosted a group of 55 leading international experts in this area at the Software Development Tools for PetaScale Computing (SDTPC) Workshop, which was held in Washington, D.C. on August 1 and 2, 2007. Software development tools serve as an important interface between the application teams and the target HPC architectures. Broadly speaking, these roles can be decomposed into three categories: performance tools, correctness tools, and development environments. Accordingly, this SDTPC report has four technical thrusts: performance tools, correctness tools, development environment infrastructures, and scalable tool infrastructures. The last thrust primarily targets tool developers per se, rather than end users. Finally, this report identifies non-technical strategic challenges that impact most tool development. The organizing committee emphasizes that many critical areas are outside the scope of this charter; these important areas include system software, compilers, and I/O.

  20. Outsourcing the development of specific application software using the ESA software engineering standards the SPS software Interlock System

    CERN Document Server

    Denis, B

    1995-01-01

    CERN is considering outsourcing as a solution to the reduction of staff. To need to re-engineer the SPS Software Interlock System provided an opportunity to explore the applicability of outsourcing to our specific controls environment and the ESA PSS-05 standards were selected for the requirements specification, the development, the control and monitoring and the project management. The software produced by the contractor is now fully operational. After outlining the scope and the complexity of the project, a discussion on the ESA PSS-05 will be presented: the choice, the way these standards improve the outsourcing process, the quality induced but also the need to adapt them and their limitation in the definition of the customer-supplier relationship. The success factors and the difficulties of development under contract will also be discussed. The maintenance aspect and the impact on in-house developments will finally be addressed.

  1. Social Software for Lifelong Competence Development: Challenges and Infrastructure

    NARCIS (Netherlands)

    Marenzi, Ivana; Demidova, Elena; Nejdl, Wolfgang; Olmedilla, Daniel; Zerr, Sergej

    2008-01-01

    Marenzi, I., Demidova, E., Nejdl, W., Olmedilla, D., & Zerr, S. (2008). Social Software for Lifelong Competence Development: Challenges and Infrastructure. International Journal of Emerging Technologies in Learning (iJET), 3, 18-23.

  2. Effective Monitoring and Control of Outsourced Software Development Projects

    NARCIS (Netherlands)

    Ponisio, Laura; Vruggink, P.

    2011-01-01

    In our study of four outsourcing projects we discover mechanisms to support managerial decision making during software development processes. We report on Customer Office, a framework used in practice that facilitates reasoning about projects by highlighting information paths and making

  3. Secure Software Development Life Cycle Processes: A Technology Scouting Report

    National Research Council Canada - National Science Library

    Davis, Noopur

    2005-01-01

    .... The purpose of this technical note is to present overview information about existing processes, standards, life cycle models, frameworks, and methodologies that support or could support secure software development...

  4. Software Components for Serious Game Development

    NARCIS (Netherlands)

    Westera, Wim; Van der Vegt, Wim; Bahreini, Kiavash; Dascalu, Mihai; Van Lankveld, Giel

    2016-01-01

    The large upfront investments required for game development pose a severe barrier for the wider uptake of serious games in education and training. Also, there is a lack of well-established methods and tools that support game developers at preserving and enhancing the games’ pedagogical

  5. Human resources development indicators for software project ...

    African Journals Online (AJOL)

    Nowadays, organizations cannot afford maintaining people who evidently are not contributing to fulfill the objectives of the project. Project Manager not only must know in a subjective way the development of the staff, but he/she should perform a monitoring what permit him/she knows the human resources development in ...

  6. Robotized semiautomatic motorcycle transmission development. Electronic and software design

    OpenAIRE

    Neghină Mihai; Petruse Radu Emanuil; Olteanu Sebastian; Bondrea Ioan; Lobonț Lucian; Stanciu Gabriel

    2017-01-01

    In this paper, we propose an electrical design (implemented on a PCB board) and an accompanying software design for controlling the automatic gear change. The designs complement the mechanical solutions developed in Part 1. The paper also analyses the issues encountered during the intermediate steps of the development of the electronic module, which is expected to be small and adaptable enough to be installed on a motorcycle without changing its ergonomics. The control software runs on the Ar...

  7. Human Factors in Software Development Processes: Measuring System Quality

    DEFF Research Database (Denmark)

    Abrahão, Silvia; Baldassarre, Maria Teresa; Caivano, Danilo

    2016-01-01

    Software Engineering and Human-Computer Interaction look at the development process from different perspectives. They apparently use very different approaches, are inspired by different principles and address different needs. But, they definitively have the same goal: develop high quality software...... in the most effective way. The second edition of the workshop puts particular attention on efforts of the two communities in enhancing system quality. The research question discussed is: who, what, where, when, why, and how should we evaluate?...

  8. Factors that Inhibit Globally Distributed Software Development Teams

    OpenAIRE

    Deanna House

    2013-01-01

    Globally distributed teams can frequently have problems specifically related to the distance and differences among team members. This paper synthesizes literature related to globally distributed software development teams to find the factors that inhibit team success. This research indicates that cultural differences, trust, communication, shared mental models, temporal agility, and work transitions can all cause problems on globally distributed software development teams. This research ca...

  9. Development and application of new quality model for software projects.

    Science.gov (United States)

    Karnavel, K; Dillibabu, R

    2014-01-01

    The IT industry tries to employ a number of models to identify the defects in the construction of software projects. In this paper, we present COQUALMO and its limitations and aim to increase the quality without increasing the cost and time. The computation time, cost, and effort to predict the residual defects are very high; this was overcome by developing an appropriate new quality model named the software testing defect corrective model (STDCM). The STDCM was used to estimate the number of remaining residual defects in the software product; a few assumptions and the detailed steps of the STDCM are highlighted. The application of the STDCM is explored in software projects. The implementation of the model is validated using statistical inference, which shows there is a significant improvement in the quality of the software projects.

  10. Digital guide to developing international software

    CERN Document Server

    Grou

    1991-01-01

    Already in use by hundreds of independent vendors and developers, here at your fingertips are the groundbreaking packaging and design guidelines that Digital recommends and uses for products headed overseas.

  11. Comparative Analysis of Software Development Methods between Parallel, V-Shaped and Iterative

    OpenAIRE

    Nugroho, Suryanto; Waluyo, Sigit Hadi; Hakim, Luqman

    2017-01-01

    Any organization that will develop software is faced with a difficult choice of choosing the right software development method. Whereas the software development methods used, play a significant role in the overall software development process. Software development methods are needed so that the software development process can be systematic so that it is not only completed within the right time frame but also must have good quality. There are various methods of software development in System ...

  12. Development of Flexible Software Process Lines with Variability Operations

    DEFF Research Database (Denmark)

    Schramm, Joachim; Dohrmann, Patrick; Kuhrmann, Marco

    2015-01-01

    Context: Software processes evolve over time and several approaches were proposed to support the required flexibility. Yet, little is known whether these approaches sufficiently support the development of large software processes. A software process line helps to systematically develop and manage...... families of processes and, as part of this, variability operations provide means to modify and reuse pre-defined process assets. Objective: Our goal is to evaluate the feasibility of variability operations to support the development of flexible software process lines. Method: We conducted a longitudinal...... study in which we studied 5 variants of the V-Modell XT process line for 2 years. Results: Our results show the variability operation instrument feasible in practice. We analyzed 616 operation exemplars addressing various customization scenarios, and we found 87 different operation types contributed...

  13. Software project management tools in global software development: a systematic mapping study.

    Science.gov (United States)

    Chadli, Saad Yasser; Idri, Ali; Ros, Joaquín Nicolás; Fernández-Alemán, José Luis; de Gea, Juan M Carrillo; Toval, Ambrosio

    2016-01-01

    Global software development (GSD) which is a growing trend in the software industry is characterized by a highly distributed environment. Performing software project management (SPM) in such conditions implies the need to overcome new limitations resulting from cultural, temporal and geographic separation. The aim of this research is to discover and classify the various tools mentioned in literature that provide GSD project managers with support and to identify in what way they support group interaction. A systematic mapping study has been performed by means of automatic searches in five sources. We have then synthesized the data extracted and presented the results of this study. A total of 102 tools were identified as being used in SPM activities in GSD. We have classified these tools, according to the software life cycle process on which they focus and how they support the 3C collaboration model (communication, coordination and cooperation). The majority of the tools found are standalone tools (77%). A small number of platforms (8%) also offer a set of interacting tools that cover the software development lifecycle. Results also indicate that SPM areas in GSD are not adequately supported by corresponding tools and deserve more attention from tool builders.

  14. Lean Architecture for Agile Software Development

    CERN Document Server

    Coplien, James O

    2010-01-01

    More and more Agile projects are seeking architectural roots as they struggle with complexity and scale - and they're seeking lightweight ways to do it: Still seeking? In this book the authors help you to find your own path; Taking cues from Lean development, they can help steer your project toward practices with longstanding track records; Up-front architecture? Sure. You can deliver an architecture as code that compiles and that concretely guides development without bogging it down in a mass of documents and guesses about the implementation; Documentation? Even a whiteboard diagram, or a CRC

  15. Interorganizational Boundary Spanning in Global Software Development

    DEFF Research Database (Denmark)

    Søderberg, Anne-Marie; Romani, Laurence

    , and which skills and competencies they draw on in their efforts to deal with emerging cross-cultural issues in a way that paves ground for developing a shared understanding and common platform for the client and vendor representatives. A framework of boundary spanning leadership practices is adapted...

  16. A REVIEW OF ESTIMATION OF SOFTWARE PRODUCTS DEVELOPMENT COSTS

    Directory of Open Access Journals (Sweden)

    Edin Osmanbegović

    2017-01-01

    Full Text Available In the modern business and management of business processes, the standardization of procedures allows the creation of added value, increasing competitiveness and success in the business of an organization. Evaluation of the budget for software development is crucial to the success of an IT project, because the inability to make a realistic assessment leads to inadequate project plans, customer dissatisfaction, poor quality of software products, and reduced profits. In order to minimize such situations, making accurate and reliable software cost estimation should be carried out at all stages of the project life cycle. Although hundreds of research articles focusing on the application of different methods of budget estimates of the software product have been published so far, there is no comprehensive review of the current situation or review of research trends in the budget estimates of the software product. This paper aims to create a framework for estimation of costs of development of software products by providing an overview of the most influential researchers, the most influential articles published in the WoS database, the most used keywords for searching the articles, as well as a review of the estimation techniques used in budget estimates of the software product.

  17. Boundary Spanning in Global Software Development

    DEFF Research Database (Denmark)

    Søderberg, Anne-Marie; Romani, Laurence

    How does a global company deal with inter-organizational boundary spanning activities? If the company is an Indian vendor, and the client a Western multinational company in need of major transformations, the answer to this question challenges prior research. This paper builds on a field study...... of Indian IT vendor managers who are responsible for developing client relations and coordinating complex global development projects. The authors revise a framework of boundary spanning leadership practices to adapt it to an offshore outsourcing context. The empirical investigation highlights how...... imbalances of power, exacerbated in the case of an Indian vendor and a European client, need to be taken into account. The paper thus contributes with a more context sensitive understanding of inter-organizational boundary work. Taking the vendor perspective also leads to problematization of common...

  18. Standardization of Software Application Development and Governance

    Science.gov (United States)

    2015-03-01

    Common lnfrastrucuture •Common SOA Stack •Common Commercial Technologies • Re-use of Common Services • Pattern discovery and Template Development...lacking is a common acquisition approach as to how to acquire an integrated solution. As an example, SOA benefits are dependent on strong governance ...needs or capabilities, but heavily governed by mandates and policies. SOA is another example of a derived requirement. It is an implementation

  19. Organizational Structure Considerations for Software Development Projects.

    Science.gov (United States)

    1982-12-01

    decil-e :h- optimal quantity of an input to utilize i the sof- waze development process. Programmer labor will be used as a rspresenta-:ivs inpu-i. It...analysis of the importance of several elements of organizational structure, and of how they can use this knowledge to make decisions which will have a... use :his knowledge m ake decision: which wil. have a: positive impact On the success c- thar projects. The structural elements discussed are

  20. A Methodology for Developing Environmental Information Systems with Software Agents

    Science.gov (United States)

    Athanasiadis, Ioannis N.; Mitkas, Pericles A.

    This article presents a unifying methodology for developing environmental information systems with software agents. Based on the experience reported in recent literature, we abstract common requirements of environmental information systems into agent types, combine state-of-the-art tools from computer science, service-oriented software engineering and artificial intelligence domains, as software agents and machine learning, and illustrate their potential for solving real-world problems. Specifically, two generic agent types are specified that behave as information carriers and decision makers, which provide an appropriate abstraction for deployment of added-value services in environmental information systems.

  1. Flexible, reliable software using patterns and agile development

    CERN Document Server

    Christensen, Henrik B

    2010-01-01

    …This book brings together a careful selection of topics that are relevant, indeed crucial, for developing good quality software with a carefully designed pedagogy that leads the reader through an experience of active learning. The emphasis in the content is on practical goals-how to construct reliable and flexible software systems-covering many topics that every software engineer should have studied. The emphasis in the method is on providing a practical context, hands-on projects, and guidance on process. … The text discusses not only what the end product should be like, but also how to get

  2. Distributed Software Development with One Hand Tied Behind the Back

    DEFF Research Database (Denmark)

    Kuhrmann, Marco; Münch, Jürgen

    2016-01-01

    Software development consists to a large extent of human-based processes with continuously increasing demands regarding interdisciplinary team work. Understanding the dynamics of software teams can be seen as highly important to successful project execution. Hence, for future project managers...... about the importance of communication by experiencing the impact of limitations of communication channels and the effects on collaboration and team performance. The course unit presented uses the controlled experiment instrument to provide the basic organization of a small software project carried out...

  3. [Development of a software for 3D virtual phantom design].

    Science.gov (United States)

    Zou, Lian; Xie, Zhao; Wu, Qi

    2014-02-01

    In this paper, we present a 3D virtual phantom design software, which was developed based on object-oriented programming methodology and dedicated to medical physics research. This software was named Magical Phan tom (MPhantom), which is composed of 3D visual builder module and virtual CT scanner. The users can conveniently construct any complex 3D phantom, and then export the phantom as DICOM 3.0 CT images. MPhantom is a user-friendly and powerful software for 3D phantom configuration, and has passed the real scene's application test. MPhantom will accelerate the Monte Carlo simulation for dose calculation in radiation therapy and X ray imaging reconstruction algorithm research.

  4. Influence of software product management maturity on usage of artefacts in agile software development

    NARCIS (Netherlands)

    Wagenaar, G.; Overbeek, S.J.; Lucassen, G.G.; Brinkkemper, S.; Schneider, K.

    2017-01-01

    Context: Agile software development (ASD) uses ‘agile’ artefacts such as user stories and product backlogs as well as ‘non-agile’ artefacts, for instance designs and test plans. Rationales for incorporating especially non-agile artefacts by an agile team mainly remain unknown territory. Goal: We

  5. Developing a software for removable partial denture design: Part II: Introduction of RPD graph software

    Directory of Open Access Journals (Sweden)

    Nejatidanesh F

    2007-06-01

    Full Text Available Background and Aim: Designing removable partial dentures is one of the most important phases of prosthetic treatments. Computer can be used to facilitate and increase accuracy of removable partial denture design. The aim of this study was to develop a software for removable partial denture design.Materials and Methods: A questionnaire (discussed in part I and major textbooks, were used to determine the design rules.  The software (RPD Graph was developed using Visual C++ and Maryam program. The RPD Graph can determine the classification of partial edentulous arch. With defining the missing teeth and providing data about prognosis and conditions of abutment teeth, the removable partial design will be developed by RPD Graph. This software is a knowledge-based system which has specific characteristics. It can be used as an educational tool for teaching RPD design and as a clinical tool for supporting clinician's decision. In addition it can be developed to more complete softwares.

  6. Identifying Coordination Problems in Software Development: Finding Mismatches between Software and Project Team Structures

    NARCIS (Netherlands)

    Amrit, Chintan Amrit; van Hillegersberg, Jos; Kumar, Kuldeep

    2012-01-01

    Today’s dynamic and iterative development environment brings significant challenges for software project management. In distributed project settings, “management by walking around” is no longer an option and project managers may miss out on key project insights. The TESNA (TEchnical Social Network

  7. Identifying Coordination Problems in Software Development : Finding Mismatches between Software and Project Team Structures

    NARCIS (Netherlands)

    Amrit, Chintan Amrit; van Hillegersberg, Jos; Kumar, Kuldeep

    2012-01-01

    Today’s dynamic and iterative development environment brings significant challenges for software project management. In distributed project settings, “management by walking around” is no longer an option and project managers may miss out on key project insights. The TESNA (TEchnical Social Network

  8. SPHERE data reduction software: first insights into data reduction software development for next-generation instruments

    Science.gov (United States)

    Möller-Nilsson, Ole; Pavlov, Alexey; Feldt, Markus

    2010-07-01

    The Spectro-Polarimetric High-contrast Exoplanet Research (SPHERE) instrument for the VLT is designed for discovering new giant planets orbiting nearby stars by direct imaging. The accuracy demands on this complex instrument and its data reduction handling are high. Here, we outline the design of the data reduction software for SPHERE and argue that SPHERE can be seen as one of the first of a new generation of instruments. We discuss what can be learned from SPHERE about new challenges in reduction software design, management and development. Along with the key issues, we formulate some general principles to help overcoming these challenges.

  9. Formal methods in software development: A road less travelled

    Directory of Open Access Journals (Sweden)

    John A van der Poll

    2010-08-01

    Full Text Available An integration of traditional verification techniques and formal specifications in software engineering is presented. Advocates of such techniques claim that mathematical formalisms allow them to produce quality, verifiably correct, or at least highly dependable software and that the testing and maintenance phases are shortened. Critics on the other hand maintain that software formalisms are hard to master, tedious to use and not well suited for the fast turnaround times demanded by industry. In this paper some popular formalisms and the advantages of using these during the early phases of the software development life cycle are presented. Employing the Floyd-Hoare verification principles during the formal specification phase facilitates reasoning about the properties of a specification. Some observations that may help to alleviate the formal-methods controversy are established and a number of formal methods successes is presented. Possible conditions for an increased acceptance of formalisms in oftware development are discussed.

  10. Software Engineering Research/Developer Collaborations in 2004 (C104)

    Science.gov (United States)

    Pressburger, Tom; Markosian, Lawrance

    2005-01-01

    In 2004, six collaborations between software engineering technology providers and NASA software development personnel deployed a total of five software engineering technologies (for references, see Section 7.2) on the NASA projects. The main purposes were to benefit the projects, infuse the technologies if beneficial into NASA, and give feedback to the technology providers to improve the technologies. Each collaboration project produced a final report (for references, see Section 7.1). Section 2 of this report summarizes each project, drawing from the final reports and communications with the software developers and technology providers. Section 3 indicates paths to further infusion of the technologies into NASA practice. Section 4 summarizes some technology transfer lessons learned. Section 6 lists the acronyms used in this report.

  11. Software Development and Test Methodology for a Distributed Ground System

    Science.gov (United States)

    Ritter, George; Guillebeau, Pat; McNair, Ann R. (Technical Monitor)

    2002-01-01

    The Marshall Space Flight Center's (MSFC) Payload Operations Center (POC) ground system has evolved over a period of about 10 years. During this time the software processes have migrated from more traditional to more contemporary development processes in an effort to minimize unnecessary overhead while maximizing process benefits. The Software processes that have evolved still emphasize requirements capture, software configuration management, design documenting, and making sure the products that have been developed are accountable to initial requirements. This paper will give an overview of how the Software Processes have evolved, highlighting the positives as well as the negatives. In addition, we will mention the COTS tools that have been integrated into the processes and how the COTS have provided value to the project.

  12. A meta-composite software development approach for translational research.

    Science.gov (United States)

    Sadasivam, Rajani S; Tanik, Murat M

    2013-06-01

    Translational researchers conduct research in a highly data-intensive and continuously changing environment and need to use multiple, disparate tools to achieve their goals. These researchers would greatly benefit from meta-composite software development or the ability to continuously compose and recompose tools together in response to their ever-changing needs. However, the available tools are largely disconnected, and current software approaches are inefficient and ineffective in their support for meta-composite software development. Building on the composite services development approach, the de facto standard for developing integrated software systems, we propose a concept-map and agent-based meta-composite software development approach. A crucial step in composite services development is the modeling of users' needs as processes, which can then be specified in an executable format for system composition. We have two key innovations. First, our approach allows researchers (who understand their needs best) instead of technicians to take a leadership role in the development of process models, reducing inefficiencies and errors. A second innovation is that our approach also allows for modeling of complex user interactions as part of the process, overcoming the technical limitations of current tools. We demonstrate the feasibility of our approach using a real-world translational research use case. We also present results of usability studies evaluating our approach for future refinements.

  13. Hardware And Software For Development Of Robot Arms

    Science.gov (United States)

    Usikov, Daniel

    1995-01-01

    System of modular, reusable hardware and software assembled for use in developing remotely controlled robotic arms. Includes (1) central computer and peripheral equipment at control and monitoring station and (2) remote mechanical platform that supports robotic arm. Central computer controls motor drives of robotic arm, but optically, platform holds on-board computer for autonomous operation. Consists mostly of commercial hardware and software. Simulated results of commands viewed in three dimensions.

  14. The effects of cartoon software on developing reading skills

    Directory of Open Access Journals (Sweden)

    Dönercan DÖNÜK

    2013-12-01

    Full Text Available Thanks to the technological advances, language teaching classrooms, along with the other classroom settings, have been exposed to a shift. Due to the fact that the contributions of technological software and Web tools to language skills are a requirement in this world of education, language teachers try various ways to use technology in their classroom settings. In this respect, the present study aims to see the effects of cartoon software on developing reading skills of A2 level students

  15. Contract-oriented software development for internet services

    DEFF Research Database (Denmark)

    Giambiagi, Pablo; Owe, Olaf; Ravn, Anders Peter

    2008-01-01

    COSoDIS (Contract-Oriented Software Development for Internet Services) develops novel approaches to implement and reason about contracts in service oriented architectures (SOA). The rationale is that system developers benefit from abstraction mechanisms to work with these architectures. Therefore...

  16. Why Closely Coupled Work Matters in Global Software Development

    DEFF Research Database (Denmark)

    Jensen, Rasmus Eskild

    2014-01-01

    We report on an ethnographic study of an offshore global software development project between Danish and Philippine developers in a Danish company called GlobalSoft. We investigate why the IT- developers chose to engage in more closely coupled work as the project progressed and argue that closely...

  17. Dependability modeling and assessment in UML-based software development.

    Science.gov (United States)

    Bernardi, Simona; Merseguer, José; Petriu, Dorina C

    2012-01-01

    Assessment of software nonfunctional properties (NFP) is an important problem in software development. In the context of model-driven development, an emerging approach for the analysis of different NFPs consists of the following steps: (a) to extend the software models with annotations describing the NFP of interest; (b) to transform automatically the annotated software model to the formalism chosen for NFP analysis; (c) to analyze the formal model using existing solvers; (d) to assess the software based on the results and give feedback to designers. Such a modeling→analysis→assessment approach can be applied to any software modeling language, be it general purpose or domain specific. In this paper, we focus on UML-based development and on the dependability NFP, which encompasses reliability, availability, safety, integrity, and maintainability. The paper presents the profile used to extend UML with dependability information, the model transformation to generate a DSPN formal model, and the assessment of the system properties based on the DSPN results.

  18. A Padawan Programmer's Guide to Developing Software Libraries.

    Science.gov (United States)

    Yurkovich, James T; Yurkovich, Benjamin J; Dräger, Andreas; Palsson, Bernhard O; King, Zachary A

    2017-11-22

    With the rapid adoption of computational tools in the life sciences, scientists are taking on the challenge of developing their own software libraries and releasing them for public use. This trend is being accelerated by popular technologies and platforms, such as GitHub, Jupyter, R/Shiny, that make it easier to develop scientific software and by open-source licenses that make it easier to release software. But how do you build a software library that people will use? And what characteristics do the best libraries have that make them enduringly popular? Here, we provide a reference guide, based on our own experiences, for developing software libraries along with real-world examples to help provide context for scientists who are learning about these concepts for the first time. While we can only scratch the surface of these topics, we hope that this article will act as a guide for scientists who want to write great software that is built to last. Copyright © 2017 Elsevier Inc. All rights reserved.

  19. Development of Cell Analysis Software for Cultivated Corneal Endothelial Cells.

    Science.gov (United States)

    Okumura, Naoki; Ishida, Naoya; Kakutani, Kazuya; Hongo, Akane; Hiwa, Satoru; Hiroyasu, Tomoyuki; Koizumi, Noriko

    2017-11-01

    To develop analysis software for cultured human corneal endothelial cells (HCECs). Software was designed to recognize cell borders and to provide parameters such as cell density, coefficient of variation, and polygonality of cultured HCECs based on phase contrast images. Cultured HCECs with high or low cell density were incubated with Ca-free and Mg-free phosphate-buffered saline for 10 minutes to reveal the cell borders and were then analyzed with software (n = 50). Phase contrast images showed that cell borders were not distinctly outlined, but these borders became more distinctly outlined after phosphate-buffered saline treatment and were recognized by cell analysis software. The cell density value provided by software was similar to that obtained using manual cell counting by an experienced researcher. Morphometric parameters, such as the coefficient of variation and polygonality, were also produced by software, and these values were significantly correlated with cell density (Pearson correlation coefficients -0.62 and 0.63, respectively). The software described here provides morphometric information from phase contrast images, and it enables subjective and noninvasive quality assessment for tissue engineering therapy of the corneal endothelium.

  20. SCaN Testbed Software Development and Lessons Learned

    Science.gov (United States)

    Kacpura, Thomas J.; Varga, Denise M.

    2012-01-01

    National Aeronautics and Space Administration (NASA) has developed an on-orbit, adaptable, Software Defined Radio (SDR)Space Telecommunications Radio System (STRS)-based testbed facility to conduct a suite of experiments to advance technologies, reduce risk, and enable future mission capabilities on the International Space Station (ISS). The SCAN Testbed Project will provide NASA, industry, other Government agencies, and academic partners the opportunity to develop and field communications, navigation, and networking technologies in the laboratory and space environment based on reconfigurable, SDR platforms and the STRS Architecture.The SDRs are a new technology for NASA, and the support infrastructure they require is different from legacy, fixed function radios. SDRs offer the ability to reconfigure on-orbit communications by changing software for new waveforms and operating systems to enable new capabilities or fix any anomalies, which was not a previous option. They are not stand alone devices, but required a new approach to effectively control them and flow data. This requires extensive software to be developed to utilize the full potential of these reconfigurable platforms. The paper focuses on development, integration and testing as related to the avionics processor system, and the software required to command, control, monitor, and interact with the SDRs, as well as the other communication payload elements. An extensive effort was required to develop the flight software and meet the NASA requirements for software quality and safety. The flight avionics must be radiation tolerant, and these processors have limited capability in comparison to terrestrial counterparts. A big challenge was that there are three SDRs onboard, and interfacing with multiple SDRs simultaneously complicatesd the effort. The effort also includes ground software, which is a key element for both the command of the payload, and displaying data created by the payload. The verification of

  1. Framework for Development of Object-Oriented Software

    Science.gov (United States)

    Perez-Poveda, Gus; Ciavarella, Tony; Nieten, Dan

    2004-01-01

    The Real-Time Control (RTC) Application Framework is a high-level software framework written in C++ that supports the rapid design and implementation of object-oriented application programs. This framework provides built-in functionality that solves common software development problems within distributed client-server, multi-threaded, and embedded programming environments. When using the RTC Framework to develop software for a specific domain, designers and implementers can focus entirely on the details of the domain-specific software rather than on creating custom solutions, utilities, and frameworks for the complexities of the programming environment. The RTC Framework was originally developed as part of a Space Shuttle Launch Processing System (LPS) replacement project called Checkout and Launch Control System (CLCS). As a result of the framework s development, CLCS software development time was reduced by 66 percent. The framework is generic enough for developing applications outside of the launch-processing system domain. Other applicable high-level domains include command and control systems and simulation/ training systems.

  2. DPOI: Distributed software system development platform for ocean information service

    Science.gov (United States)

    Guo, Zhongwen; Hu, Keyong; Jiang, Yongguo; Sun, Zhaosui

    2015-02-01

    Ocean information management is of great importance as it has been employed in many areas of ocean science and technology. However, the developments of Ocean Information Systems (OISs) often suffer from low efficiency because of repetitive work and continuous modifications caused by dynamic requirements. In this paper, the basic requirements of OISs are analyzed first, and then a novel platform DPOI is proposed to improve development efficiency and enhance software quality of OISs by providing off-the-shelf resources. In the platform, the OIS is decomposed hierarchically into a set of modules, which can be reused in different system developments. These modules include the acquisition middleware and data loader that collect data from instruments and files respectively, the database that stores data consistently, the components that support fast application generation, the web services that make the data from distributed sources syntactical by use of predefined schemas and the configuration toolkit that enables software customization. With the assistance of the development platform, the software development needs no programming and the development procedure is thus accelerated greatly. We have applied the development platform in practical developments and evaluated its efficiency in several development practices and different development approaches. The results show that DPOI significantly improves development efficiency and software quality.

  3. A Survey of Formal Methods in Software Development

    DEFF Research Database (Denmark)

    Bjørner, Dines

    2012-01-01

    The use of formal methods and formal techniques in industry is steadily growing. In this survey we shall characterise what we mean by software development and by a formal method; briefly overview a history of formal specification languages - some of which are: VDM (Vienna Development Method, 1974......-..., [1]), Z (Z for Zermelo Fraenkel, 1980-..., [2]), RAISE (Rigorous Approach to Industrial Software Engineering, 1987-..., [3]) Event B (B for Bourbaki, 1990/2000-..., [4]) and Alloy [5]; and outline the basics of a formal development using, for example, RAISE: first developing a domain description D......, then a requirements prescription R, and finally a software design S - showing (arguing or formally proving) that S, in the context of D satisfies (is correct with respect to) R. We shall then mention industries in Japan, Europe and USA which, in a number of projects, use formal methods; discuss what it takes...

  4. Final Report. Center for Scalable Application Development Software

    Energy Technology Data Exchange (ETDEWEB)

    Mellor-Crummey, John [Rice Univ., Houston, TX (United States)

    2014-10-26

    The Center for Scalable Application Development Software (CScADS) was established as a part- nership between Rice University, Argonne National Laboratory, University of California Berkeley, University of Tennessee – Knoxville, and University of Wisconsin – Madison. CScADS pursued an integrated set of activities with the aim of increasing the productivity of DOE computational scientists by catalyzing the development of systems software, libraries, compilers, and tools for leadership computing platforms. Principal Center activities were workshops to engage the research community in the challenges of leadership computing, research and development of open-source software, and work with computational scientists to help them develop codes for leadership computing platforms. This final report summarizes CScADS activities at Rice University in these areas.

  5. Real-time Control Mediation in Agile Distributed Software Development

    DEFF Research Database (Denmark)

    Persson, John Stouby; Aaen, Ivan; Mathiassen, Lars

    2008-01-01

    Agile distributed environments pose particular challenges related to control of quality and collaboration in software development. Moreover, while face-to-face interaction is fundamental in agile development, distributed environments must rely extensively on mediated interactions. On this backdrop......-time mediated control exchanges; and, that the actors, despite distances in space and culture, developed a clan-like pattern mediated by technology to help control quality and collaboration in software development......., we report from an in-depth case study of an agile distributed software project. Applying Kirsch’s elements of control framework, we analyze how actors in this context used different elements of control. We offer a description of the general management context and provide a detailed analysis of how...

  6. Epistemic Communities, Situated Learning and Open Source Software Development

    DEFF Research Database (Denmark)

    Edwards, Kasper

    2001-01-01

    of epistemic communities does indeed contribute to the understanding of open source software development. But, the important learning process of open source software development is not readily explained. The paper then introduces situated learning and legitimate peripheral participation as theoretical......This paper analyses open source software (OSS) development as an epistemic community where each individual project is perceived as a single epistemic community. OSS development is a learning process where the involved parties contribute to, and learn from the community. It is discovered that theory...... perspectives. This allows the learning process to be part of the activities in the epistemic community. The combination of situated learning and epistemic communities is shown to be fruitful and capable of explaining some of the empirical observations. In particular the combination of theories can shed light...

  7. Adopting of Agile methods in Software Development Organizations: Systematic Mapping

    Directory of Open Access Journals (Sweden)

    Samia Abdalhamid

    2017-11-01

    Full Text Available Adoption of agile methods in the software development organization is considered as a powerful solution to deal with the quickly changing and regularly developing business environment and fully-educated customers with constantly rising expectation, such as shorter time periods and an extraordinary level of response and service. This study investigates the adoption of agile approaches in software development organizations by using systematic mapping. Six research questions are identified, and to answer these questions a number of research papers have been reviewed in electronic databases. Finally, 25 research papers are examined and answers to all research questions are provided.

  8. On the use of DEA for software development productivity measurement

    DEFF Research Database (Denmark)

    Asmild, Mette; Imperatore, Francisco

    2016-01-01

    analysis, many of which are not limited to efficiency assessment of software development. Thus this paper, besides providing a thorough literature review and resulting guidelines specifically for the analysis of software development productivity, also aims at providing a practical "how to" guide...... for the empirical analysis that can be used more generally. In terms of actual empirical results, we find a clear indication of variable returns to scale, of differences between new and evolutions developments and some indications of differences between programming languages. We also include potentially relevant...

  9. A software framework for developing measurement applications under variable requirements.

    Science.gov (United States)

    Arpaia, Pasquale; Buzio, Marco; Fiscarelli, Lucio; Inglese, Vitaliano

    2012-11-01

    A framework for easily developing software for measurement and test applications under highly and fast-varying requirements is proposed. The framework allows the software quality, in terms of flexibility, usability, and maintainability, to be maximized. Furthermore, the development effort is reduced and finalized, by relieving the test engineer of development details. The framework can be configured for satisfying a large set of measurement applications in a generic field for an industrial test division, a test laboratory, or a research center. As an experimental case study, the design, the implementation, and the assessment inside the application to a measurement scenario of magnet testing at the European Organization for Nuclear Research is reported.

  10. SISTEM INFORMASI MONITORING PENGEMBANGAN SOFTWARE PADA TAHAP DEVELOPMENT BERBASIS WEB

    Directory of Open Access Journals (Sweden)

    Asti Herliana

    2016-05-01

    Full Text Available Abstract - To work in a project, timely is one of the main points of the business aspect. It said the major, because it can keep a relationship and trust of costumers. With so many projects undertaken have certainly require precision in monitoring. Projects in the field of software development has its own problems, ranging from lack of effective mode of administration tasks and problems that are not stored properly can hinder the smooth development of the software. Companies need to design a system to monitor all the activities that occur in the software development phase. By using the information system monitoring any information required by systems analysts and programmers have been stored properly, ranging from job information, job specifications, constraints that occur in the task to estimate when the work is completed. Monitoring information system software development at this stage of development is very helpful systems analyst will need detailing project progress and improve performance in developing software programmer. Keywords : Information System, Monitoring, Software Development, Web   Abstrak - Tepat waktu dalam mengerjakan sebuah proyek merupakan salah satu point utama dari segi bisnis. Dikatakan utama, karena hal ini dapat menjaga hubungan dan juga kepercayaan dari konsumen. Dengan banyaknya proyek yang dikerjakan sudah pasti membutuhkan ketelitian dalam melakukan pemantauan. Proyek dibidang pengembangan perangkat lunak memiliki permasalahan tersendiri, mulai dari kurang efektifnya cara pemberian tugas dan permasalahan yang tidak tersimpan dengan baik dapat menghambat lancarnya pengembangan perangkat lunak. Perusahaan perlu merancang sistem untuk memantau segala aktifitas yang terjadi pada tahap pengembangan perangkat lunak. Dengan menggunakan sistem informasi monitoring setiap informasi yang diperlukan oleh sistem analis dan programmer sudah tersimpan dengan baik, mulai dari informasi tugas, spesifikasi  tugas, kendala yang

  11. A DEPLHI BASED POWER MONITORING SOFTWARE DEVELOPED FOR ENERGY ANALYZERS

    Directory of Open Access Journals (Sweden)

    A. Serdar YILMAZ

    2006-03-01

    Full Text Available In this paper, a Delphi based interface software developed for energy analyzers is presented. Transferring the electrical parameters which is read from the energy analyzer to the computer in real-time has been achieved by using the developed software. It is also possible to record the parameters such as current, voltage, power, harmonic distortion and etc in real-time and to illustrate these recorded parameters in comparison with each other and graphically. Presented software is developed for Merlin Gerin Powerlogic PM 800 power analyzers and also it is usable for different trademarks and models which use Modbus protocol. Proposed software permits intercommunication and observation between maximum 256 devices. Recorded data can be monitorized in table and graphic form for requested time and date intervals by the users. In the study, Borland Delphi v.7.0 is preferred due to flexible and fast. Developed software can be easily used for energy distribution automation and monitoring of the power flow and power quality and also it is a user friendly interface.

  12. Simplifying the Development, Use and Sustainability of HPC Software

    Directory of Open Access Journals (Sweden)

    Jeremy Cohen

    2014-07-01

    Full Text Available Developing software to undertake complex, compute-intensive scientific processes requires a challenging combination of both specialist domain knowledge and software development skills to convert this knowledge into efficient code. As computational platforms become increasingly heterogeneous and newer types of platform such as Infrastructure-as-a-Service (IaaS cloud computing become more widely accepted for high-performance computing (HPC, scientists require more support from computer scientists and resource providers to develop efficient code that offers long-term sustainability and makes optimal use of the resources available to them. As part of the libhpc stage 1 and 2 projects we are developing a framework to provide a richer means of job specification and efficient execution of complex scientific software on heterogeneous infrastructure. In this updated version of our submission to the WSSSPE13 workshop at SuperComputing 2013 we set out our approach to simplifying access to HPC applications and resources for end-users through the use of flexible and interchangeable software components and associated high-level functional-style operations. We believe this approach can support sustainability of scientific software and help to widen access to it.

  13. Intrinsic Motivation versus Signaling in Open Source Software Development

    DEFF Research Database (Denmark)

    Bitzer, J; Schrettl, W; Schröder, P

    This papers sheds light on the puzzling fact that even though open source software (OSS) is a public good, it is developed for free by highly qualified, young, motivated individuals, and evolves at a rapid pace. We show that when OSS development is understood as the private provision of a public...

  14. A Study of Collaborative Software Development Using Groupware Tools

    Science.gov (United States)

    Defranco-Tommarello, Joanna; Deek, Fadi P.

    2005-01-01

    The experimental results of a collaborative problem solving and program development model that takes into consideration the cognitive and social activities that occur during software development is presented in this paper. This collaborative model is based on the Dual Common Model that focuses on individual cognitive aspects of problem solving and…

  15. Management of Globally Distributed Component-Based Software Development Projects

    NARCIS (Netherlands)

    J. Kotlarsky (Julia)

    2005-01-01

    textabstractGlobally Distributed Component-Based Development (GD CBD) is expected to become a promising area, as increasing numbers of companies are setting up software development in a globally distributed environment and at the same time are adopting CBD methodologies. Being an emerging area, the

  16. Using Web Metric Software to Drive: Mobile Website Development

    Science.gov (United States)

    Tidal, Junior

    2011-01-01

    Many libraries have developed mobile versions of their websites. In order to understand their users, web developers have conducted both usability tests and focus groups, yet analytical software and web server logs can also be used to better understand users. Using data collected from these tools, the Ursula C. Schwerin Library has made informed…

  17. Metrics to improve control in outsourcing software development projects

    NARCIS (Netherlands)

    Ponisio, Laura; van Eck, Pascal; Messnarz, R.; Ekert, D.; Christiansen, M.; Johansen, J.; Koinig, S.

    Measurements serve as vital instruments to control projects involving software development outsourcing. However, managers have found it difficult to develop and implement effective measurement programs, in part because guidelines for choosing among concrete measure-ments are scarce. We address this

  18. Accelerating NASA GN&C Flight Software Development

    Science.gov (United States)

    Tamblyn, Scott; Henry, Joel; Rapp, John

    2010-01-01

    When the guidance, navigation, and control (GN&C) system for the Orion crew vehicle undergoes Critical Design Review (CDR), more than 90% of the flight software will already be developed - a first for NASA on a project of this scope and complexity. This achievement is due in large part to a new development approach using Model-Based Design.

  19. WILDFIRE IGNITION RESISTANCE ESTIMATOR WIZARD SOFTWARE DEVELOPMENT REPORT

    Energy Technology Data Exchange (ETDEWEB)

    Phillips, M.; Robinson, C.; Gupta, N.; Werth, D.

    2012-10-10

    This report describes the development of a software tool, entitled “WildFire Ignition Resistance Estimator Wizard” (WildFIRE Wizard, Version 2.10). This software was developed within the Wildfire Ignition Resistant Home Design (WIRHD) program, sponsored by the U. S. Department of Homeland Security, Science and Technology Directorate, Infrastructure Protection & Disaster Management Division. WildFIRE Wizard is a tool that enables homeowners to take preventive actions that will reduce their home’s vulnerability to wildfire ignition sources (i.e., embers, radiant heat, and direct flame impingement) well in advance of a wildfire event. This report describes the development of the software, its operation, its technical basis and calculations, and steps taken to verify its performance.

  20. Integrating Design Decision Management with Model-based Software Development

    DEFF Research Database (Denmark)

    Könemann, Patrick

    Design decisions are continuously made during the development of software systems and are important artifacts for design documentation. Dedicated decision management systems are often used to capture such design knowledge. Most such systems are, however, separated from the design artifacts...... of the system. In model-based software development, where design models are used to develop a software system, outcomes of many design decisions have big impact on design models. The realization of design decisions is often manual and tedious work on design models. Moreover, keeping design models consistent...... to specify realizations of decisions in design models. This way, recurring realization work of design decisions can be automated. Since the concepts are generic and not bound to design decisions, other recurring work on models can be automated as well, for instance, design patterns and refactorings...

  1. Formulation of price strategies in the software sector: outsourcing of development and maintenance software product case

    Directory of Open Access Journals (Sweden)

    Antonio Cezar Bornia

    2008-07-01

    Full Text Available The main goal of this article is to discuss the formulation of price strategies in the software sector. In the intention of reaching the proposed goal, strategies models of prices are introduced along with the procedure to the formulation of price strategies, composed by five stages: external and internal analyses, consolidation, positioning, price strategy formalization and market attendance. As for the methodology, the study is classified as qualitative, exploratory, descriptive, documental, of field and case study, according to the approach of Vergara (1998. In the case study, the model to the formulation of price strategies is applied in a company’s software sector, being analyzed the outsourcing of development and maintenance software product. As main contributions, it is highlighted the price procedure application that emphasizes strategic price logic and prices strategies formulations, with base in the analysis of five main factors: quality, comparison with the competition, company life cycle, product life cycle and characteristics of the segment-objective. Based on the analyzed factors, a possible strategy to be adopted considering the characteristics of the product and the company is the price strategy and superior value. Key-words: Pricing Strategies. Price Formulation. Software Enterprises.

  2. DEVELOPMENT OF EMITTANCE ANALYSIS SOFTWARE FOR ION BEAM CHARACTERIZATION

    Energy Technology Data Exchange (ETDEWEB)

    Padilla, M. J.; Liu, Y.

    2007-01-01

    Transverse beam emittance is a crucial property of charged particle beams that describes their angular and spatial spread. It is a fi gure of merit frequently used to determine the quality of ion beams, the compatibility of an ion beam with a given beam transport system, and the ability to suppress neighboring isotopes at on-line mass separator facilities. Generally a high quality beam is characterized by a small emittance. In order to determine and improve the quality of ion beams used at the Holifi eld Radioactive Ion beam Facility (HRIBF) for nuclear physics and nuclear astrophysics research, the emittances of the ion beams are measured at the off-line Ion Source Test Facilities. In this project, emittance analysis software was developed to perform various data processing tasks for noise reduction, to evaluate root-mean-square emittance, Twiss parameters, and area emittance of different beam fractions. The software also provides 2D and 3D graphical views of the emittance data, beam profi les, emittance contours, and RMS. Noise exclusion is essential for accurate determination of beam emittance values. A Self-Consistent, Unbiased Elliptical Exclusion (SCUBEEx) method is employed. Numerical data analysis techniques such as interpolation and nonlinear fi tting are also incorporated into the software. The software will provide a simplifi ed, fast tool for comprehensive emittance analysis. The main functions of the software package have been completed. In preliminary tests with experimental emittance data, the analysis results using the software were shown to be accurate.

  3. A Roadmap to Continuous Integration for ATLAS Software Development

    Science.gov (United States)

    Elmsheuser, J.; Krasznahorkay, A.; Obreshkov, E.; Undrus, A.; ATLAS Collaboration

    2017-10-01

    The ATLAS software infrastructure facilitates efforts of more than 1000 developers working on the code base of 2200 packages with 4 million lines of C++ and 1.4 million lines of python code. The ATLAS offline code management system is the powerful, flexible framework for processing new package versions requests, probing code changes in the Nightly Build System, migration to new platforms and compilers, deployment of production releases for worldwide access and supporting physicists with tools and interfaces for efficient software use. It maintains multi-stream, parallel development environment with about 70 multi-platform branches of nightly releases and provides vast opportunities for testing new packages, for verifying patches to existing software and for migrating to new platforms and compilers. The system evolution is currently aimed on the adoption of modern continuous integration (CI) practices focused on building nightly releases early and often, with rigorous unit and integration testing. This paper describes the CI incorporation program for the ATLAS software infrastructure. It brings modern open source tools such as Jenkins and GitLab into the ATLAS Nightly System, rationalizes hardware resource allocation and administrative operations, provides improved feedback and means to fix broken builds promptly for developers. Once adopted, ATLAS CI practices will improve and accelerate innovation cycles and result in increased confidence in new software deployments. The paper reports the status of Jenkins integration with the ATLAS Nightly System as well as short and long term plans for the incorporation of CI practices.

  4. Programming for the Newton software development with NewtonScript

    CERN Document Server

    McKeehan, Julie

    1994-01-01

    Programming for the Newton: Software Development with NewtonScript focuses on the processes, approaches, operations, and principles involved in software development with NewtonScript.The publication first elaborates on Newton application design, views on the Newton, and protos. Discussions focus on system protos, creating and using user protos, linking and naming templates, creating the views of WaiterHelper, Newton application designs, and life cycle of an application. The text then elaborates on the fundamentals of NewtonScript, inheritance in NewtonScript, and view system and messages. Topi

  5. Developing Avionics Hardware and Software for Rocket Engine Testing

    Science.gov (United States)

    Aberg, Bryce Robert

    2014-01-01

    My summer was spent working as an intern at Kennedy Space Center in the Propulsion Avionics Branch of the NASA Engineering Directorate Avionics Division. The work that I was involved with was part of Rocket University's Project Neo, a small scale liquid rocket engine test bed. I began by learning about the layout of Neo in order to more fully understand what was required of me. I then developed software in LabView to gather and scale data from two flowmeters and integrated that code into the main control software. Next, I developed more LabView code to control an igniter circuit and integrated that into the main software, as well. Throughout the internship, I performed work that mechanics and technicians would do in order to maintain and assemble the engine.

  6. Cross-Language Support Mechanisms Significantly Aid Software Development

    DEFF Research Database (Denmark)

    Pfeiffer, Rolf-Helge; Wasowski, Andrzej

    2012-01-01

    , (2) static checking, (3) navigation, and (4) refactoring of cross-language relations. We investigate whether these four mechanisms indeed improve efficiency and quality of development of multi-language systems. We run a controlled experiment in which 22 participants perform typical software evolution......Contemporary software systems combine many artifacts specified in various modeling and programming languages, domainspecific and general purpose as well. Since multi-language systems are so widespread, working on them calls for tools with cross-language support mechanisms such as (1) visualization...... tasks on the JTrac web application using a prototype tool implementing these mechanisms. The results speak clearly for integration of cross-language support mechanisms into software development tools, and justify research on automatic inference, manipulation and handling of cross-language relations....

  7. A Roadmap to Continuous Integration for ATLAS Software Development

    CERN Document Server

    Elmsheuser, Johannes; The ATLAS collaboration; Obreshkov, Emil; Undrus, Alexander

    2016-01-01

    The ATLAS software infrastructure facilitates efforts of more than 1000 developers working on the code base of 2200 packages with 4 million C++ and 1.4 million python lines. The ATLAS offline code management system is the powerful, flexible framework for processing new package versions requests, probing code changes in the Nightly Build System, migration to new platforms and compilers, deployment of production releases for worldwide access and supporting physicists with tools and interfaces for efficient software use. It maintains multi-stream, parallel development environment with about 70 multi-platform branches of nightly releases and provides vast opportunities for testing new packages, for verifying patches to existing software and for migrating to new platforms and compilers. The system evolution is currently aimed on the adoption of modern continuous integration (CI) practices focused on building nightly releases early and often, with rigorous unit and integration testing. This presentation describes t...

  8. A roadmap to continuous integration for ATLAS software development

    CERN Document Server

    AUTHOR|(INSPIRE)INSPIRE-00132984; The ATLAS collaboration; Elmsheuser, Johannes; Obreshkov, Emil; Krasznahorkay, Attila

    2017-01-01

    The ATLAS software infrastructure facilitates efforts of more than 1000 developers working on the code base of 2200 packages with 4 million C++ and 1.4 million python lines. The ATLAS offline code management system is the powerful, flexible framework for processing new package versions requests, probing code changes in the Nightly Build System, migration to new platforms and compilers, deployment of production releases for worldwide access and supporting physicists with tools and interfaces for efficient software use. It maintains multi-stream, parallel development environment with about 70 multi-platform branches of nightly releases and provides vast opportunities for testing new packages, for verifying patches to existing software and for migrating to new platforms and compilers. The system evolution is currently aimed on the adoption of modern continuous integration (CI) practices focused on building nightly releases early and often, with rigorous unit and integration testing. This paper describes the CI ...

  9. An Empirical Study on the Factors Affecting Software Development Productivity

    Directory of Open Access Journals (Sweden)

    Luigi Lavazza

    2018-02-01

    Full Text Available Background: Software development productivity is widely investigated in the Software Engineering literature. However, continuously updated evidence on productivity is constantly needed, due to the rapid evolution of software development techniques and methods, and also the regular improvement in the use of the existing ones. Objectives: The main goal of this paper is to investigate which factors affect productivity. It was also investigated whether economies or diseconomies of scale exist and whether they may be influenced by productivity factors. Method: An empirical investigation was carried out using a dataset available at the software project repository ISBSG. The major focus was on factors that may affect productivity from a functional point of view. The the conducted analysis was compared with the productivity data provided by Capers Jones in 1996 and 2013 and with an investigation on open-source software by Delorey et al. Results: This empirical study led to the discovery of interesting models that show how the different factors do (or do not affect productivity. It was also found out that some factors appear to allow for economies of scale, while others appear to cause diseconomies of scale. Conclusions: This paper provides some more evidence about how four factors, i.e., programming languages, business areas, architectural types, and the usage of CASE tools, influence productivity and highlights some interesting divergences in comparison with the results reported by Capers Jones and Delorey et al.

  10. Developing Teaching Material Software Assisted for Numerical Methods

    Science.gov (United States)

    Handayani, A. D.; Herman, T.; Fatimah, S.

    2017-09-01

    The NCTM vision shows the importance of two things in school mathematics, which is knowing the mathematics of the 21st century and the need to continue to improve mathematics education to answer the challenges of a changing world. One of the competencies associated with the great challenges of the 21st century is the use of help and tools (including IT), such as: knowing the existence of various tools for mathematical activity. One of the significant challenges in mathematical learning is how to teach students about abstract concepts. In this case, technology in the form of mathematics learning software can be used more widely to embed the abstract concept in mathematics. In mathematics learning, the use of mathematical software can make high level math activity become easier accepted by student. Technology can strengthen student learning by delivering numerical, graphic, and symbolic content without spending the time to calculate complex computing problems manually. The purpose of this research is to design and develop teaching materials software assisted for numerical method. The process of developing the teaching material starts from the defining step, the process of designing the learning material developed based on information obtained from the step of early analysis, learners, materials, tasks that support then done the design step or design, then the last step is the development step. The development of teaching materials software assisted for numerical methods is valid in content. While validator assessment for teaching material in numerical methods is good and can be used with little revision.

  11. Improving Reuse in Software Development for the Life Sciences

    Science.gov (United States)

    Iannotti, Nicholas V.

    2013-01-01

    The last several years have seen unprecedented advancements in the application of technology to the life sciences, particularly in the area of data generation. Novel scientific insights are now often driven primarily by software development supporting new multidisciplinary and increasingly multifaceted data analysis. However, despite the…

  12. The Economics of Open Source Software Development: An Introduction

    DEFF Research Database (Denmark)

    Schröder, Philipp J.H.; Bitzer, Jürgen

    2006-01-01

    This chapter introduces the fundamentals of Open Source Software, its nature, the central economic aspects and the key mechanisms of its development. Furthermore, we present the themes of the book and provide a first overview for the reader by giving short summaries of its chapters....

  13. Institutional Logics, Indie Software Developers and Platform Governance

    Science.gov (United States)

    Qiu, Yixin

    2013-01-01

    This two-essay dissertation aims to study institutional logics in the context of Apple's independent third-party software developers. In essay 1, I investigate the embedded agency aspect of the institutional logics theory. It builds on the premise that logics constrain preferences, interests and behaviors of individuals and organizations, thereby…

  14. Approximator: Predicting Interruptibility in Software Development with Commodity Computers

    DEFF Research Database (Denmark)

    Tell, Paolo; Jalaliniya, Shahram; Andersen, Kristian S. M.

    2015-01-01

    Assessing the presence and availability of a remote colleague is key in coordination in global software development but is not easily done using existing computer-mediated channels. Previous research has shown that automated estimation of interruptibility is feasible and can achieve a precision...

  15. Managing Software Development Projects, The Sequence of the Project Phases

    OpenAIRE

    Felician ALECU

    2011-01-01

    Software development projects are logically divided into phases that are composing the project life cycle. Typically, the phases are scheduled sequentially but in some cases a project may take clear advantages by running the phases concurrently. The most common phase-to-phase relation-ships are sequential, overlapping, iterative and composite.

  16. Agile Software Development in the Department of Defense Environment

    Science.gov (United States)

    2017-03-31

    acquisition system for information technology ” (para. 2). The DoD is subject to a changing operational environment , budgetary constraints, the rapid...Agile Software Development in the Department of Defense Environment Lareina Adams March 31, 2017...Defense (DoD) information technology (IT) programs are plagued by immense bureaucracy, seemingly endless documentation, cost overruns, and poorly

  17. On the development of software product-family components

    NARCIS (Netherlands)

    Bosch, J; Nord, RL

    2004-01-01

    Several approaches to the development of shared artefacts in software product families exist. Each has advantages and disadvantages, but there is no clear framework for selecting among these alternatives. As a consequence, mismatches between the optimal approach and the one currently used by an

  18. Contribution to the development of a simulation software ...

    African Journals Online (AJOL)

    The present work is to develop software to predict the value yield and the distribution coefficient in the process of liquid-liquid extraction of components of a mixture, from mathematical models expressing these entities, based on equations equilibrium between liquid-liquid phases, and predict the conditions under which the ...

  19. Object Oriented Software Development Using A Use-Cases Approach

    African Journals Online (AJOL)

    This paper presents a systematic approach to the analysis and design of an online banking system using the Use-Cases method of Jacobson. This analysis and design method will support the development of highly effective reuseable code, thus bringing the benefits of object orientation into important software projects.

  20. The Development of an Analyses-Intensive Software for Improved ...

    African Journals Online (AJOL)

    The Development of an Analyses-Intensive Software for Improved Cams System Design. ... If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs. Alternatively, you can download the PDF file directly to your computer, from ...

  1. Analysis of crosscutting across software development phases based on traceability

    NARCIS (Netherlands)

    van den Berg, Klaas; Conejero, J.M.; Hernández, J.

    2006-01-01

    Traceability of requirements and concerns enhances the quality of software development. We use trace relations to define crosscutting. As starting point, we set up a dependency matrix to capture the relationship between elements at two levels, e.g. concerns and representations of concerns. The

  2. Managing Software Development Projects, The Project Management Process

    Directory of Open Access Journals (Sweden)

    Felician ALECU

    2011-07-01

    Full Text Available Software development projects are logically divided into phases that are composing the project life cycle. The name and number of these phases are industry dependent, so they are completely different from one field of activity to another. Typically, the phases are scheduled sequentially but in some cases a project may take clear advantages by running the phases concurrently.

  3. The Development of an Analyses-Intensive Software for Improved ...

    African Journals Online (AJOL)

    The computer-aided software developed in this research work is used in designing cam systems by generating various follower motions and cam profiles. It is highly suited for extensive dynamics, kinematics and geometric design analysis based on some inherent features that are unique. The plate cam with either flat-face ...

  4. Development of the Law of Computer Software Protection.

    Science.gov (United States)

    Nimtz, Robert O.

    1979-01-01

    Traces the history of the development of the law dealing with the protection of computer software. The available forms of protection are the patent, copyright, and trade secret laws. Available from Business Manager, P. O. Box 2600, Arlington, Virginia 22202; sc $1.25. (Author/IRT)

  5. Use Cases in Object-Oriented Software Development

    NARCIS (Netherlands)

    van den Berg, Klaas; Aksit, Mehmet; van den Broek, P.M.

    In this document we describe use cases and its role in the software development process. There is no precise semantics of use cases. Use case descriptions can be formalized with control flowgraphs. Based on this formalization, the use of the standard technique of sequence charts can be improved, in

  6. Open Crowdsourcing: Leveraging Community Software Developers for IT Projects

    Science.gov (United States)

    Phair, Derek

    2012-01-01

    This qualitative exploratory single-case study was designed to examine and understand the use of volunteer community participants as software developers and other project related roles, such as testers, in completing a web-based application project by a non-profit organization. This study analyzed the strategic decision to engage crowd…

  7. Agile Software Development Methods: A Comparative Review1

    Science.gov (United States)

    Abrahamsson, Pekka; Oza, Nilay; Siponen, Mikko T.

    Although agile software development methods have caught the attention of software engineers and researchers worldwide, scientific research still remains quite scarce. The aim of this study is to order and make sense of the different agile approaches that have been proposed. This comparative review is performed from the standpoint of using the following features as the analytical perspectives: project management support, life-cycle coverage, type of practical guidance, adaptability in actual use, type of research objectives and existence of empirical evidence. The results show that agile software development methods cover, without offering any rationale, different phases of the software development life-cycle and that most of these methods fail to provide adequate project management support. Moreover, quite a few methods continue to offer little concrete guidance on how to use their solutions or how to adapt them in different development situations. Empirical evidence after ten years of application remains quite limited. Based on the results, new directions on agile methods are outlined.

  8. Problem Solving Frameworks for Mathematics and Software Development

    Science.gov (United States)

    McMaster, Kirby; Sambasivam, Samuel; Blake, Ashley

    2012-01-01

    In this research, we examine how problem solving frameworks differ between Mathematics and Software Development. Our methodology is based on the assumption that the words used frequently in a book indicate the mental framework of the author. We compared word frequencies in a sample of 139 books that discuss problem solving. The books were grouped…

  9. Managing Software Development Projects, The Sequence of the Project Phases

    Directory of Open Access Journals (Sweden)

    Felician ALECU

    2011-10-01

    Full Text Available Software development projects are logically divided into phases that are composing the project life cycle. Typically, the phases are scheduled sequentially but in some cases a project may take clear advantages by running the phases concurrently. The most common phase-to-phase relation-ships are sequential, overlapping, iterative and composite.

  10. Exploring Coordination Structures in Open Source Software Development

    NARCIS (Netherlands)

    van Hillegersberg, Jos; Harmsen, Frank; Hegeman, J.H.; Amrit, Chintan Amrit; Geisberger, Eva; Keil, Patrick; Kuhrmann, Marco

    2007-01-01

    Coordination is difficult to achieve in a large globally distributed project setting. The problem is multiplied in open source software development projects, where most of the traditional means of coordination such as plans, system-level designs, schedules and defined process are not used. In order

  11. A Posteriori Integration of University CAPE Software Developments

    DEFF Research Database (Denmark)

    Tolksdorf, Gregor; Fillinger, Sandra; Wozny, Guenter

    2015-01-01

    This contribution deals with the mutual integration of existing CAPE software products developed at different universities in Germany, Denmark, and Italy. After the motivation MOSAIC is presented as the bridge building the connection between the modelling tool ICAS-MoT and the numerical processin...

  12. Effective Development and Verification of Railway Control Software

    DEFF Research Database (Denmark)

    Haxthausen, Anne Elisabeth

    2011-01-01

    This document presents a method for effective development of software for a product line of similar railway control systems. The software is constructed in three steps: first a specifications in a domain-specific language is created, then a formal behavioural controller model is automatically...... created from the specification, and finally the model is compiled into executable object code. Formal verification is performed automatically by tools at three levels: (1) the specification is checked to follow the rules of the domain, (2) the controller model is checked to ensure safety, and (3...

  13. An Introduction to Flight Software Development: FSW Today, FSW 2010

    Science.gov (United States)

    Gouvela, John

    2004-01-01

    Experience and knowledge gained from ongoing maintenance of Space Shuttle Flight Software and new development projects including Cockpit Avionics Upgrade are applied to projected needs of the National Space Exploration Vision through Spiral 2. Lessons learned from these current activities are applied to create a sustainable, reliable model for development of critical software to support Project Constellation. This presentation introduces the technologies, methodologies, and infrastructure needed to produce and sustain high quality software. It will propose what is needed to support a Vision for Space Exploration that places demands on the innovation and productivity needed to support future space exploration. The technologies in use today within FSW development include tools that provide requirements tracking, integrated change management, modeling and simulation software. Specific challenges that have been met include the introduction and integration of Commercial Off the Shelf (COTS) Real Time Operating System for critical functions. Though technology prediction has proved to be imprecise, Project Constellation requirements will need continued integration of new technology with evolving methodologies and changing project infrastructure. Targets for continued technology investment are integrated health monitoring and management, self healing software, standard payload interfaces, autonomous operation, and improvements in training. Emulation of the target hardware will also allow significant streamlining of development and testing. The methodologies in use today for FSW development are object oriented UML design, iterative development using independent components, as well as rapid prototyping . In addition, Lean Six Sigma and CMMI play a critical role in the quality and efficiency of the workforce processes. Over the next six years, we expect these methodologies to merge with other improvements into a consolidated office culture with all processes being guided by

  14. Biogem: an effective tool based approach for scaling up open source software development in bioinformatics

    NARCIS (Netherlands)

    Bonnal, R.J.P.; Smant, G.; Prins, J.C.P.

    2012-01-01

    Biogem provides a software development environment for the Ruby programming language, which encourages community-based software development for bioinformatics while lowering the barrier to entry and encouraging best practices. Biogem, with its targeted modular and decentralized approach, software

  15. Open Online Research: Developing Software and Method for Collaborative Interpretation

    Directory of Open Access Journals (Sweden)

    Christian Bröer

    2016-09-01

    Full Text Available Inspired by the potentials of web-based collaboration, in 2014, a group of social scientists, students and information specialists started tinkering with software and methodology for open online collaborative research. The results of their research led to a gathering of academics at the #ethnography Conference Amsterdam 2014, where new material was collected, shared and collaboratively interpreted. Following the conference, they continued to develop software and methodology. In this contribution, we report on the aims, methodology, inspiring examples, caveats and results from testing several prototypes of open online research software. We conclude that open online collaborative interpretation is both feasible and desirable. Dialogue and reflexivity, we hold, are able to transcend separated perspectives and stimulate agreement on a set of distinct interpretations; they simultaneously respect the multiplicity of understandings of social phenomena whilst bringing order into this diversity. URN: http://nbn-resolving.de/urn:nbn:de:0114-fqs160327

  16. Increasing the impact of usability work in software development

    DEFF Research Database (Denmark)

    Uldall-Espersen, Tobias; Frøkjær, Erik

    2006-01-01

    Usability, Case Study, Software Engineering, Software Quality, Organizational Impact, Usability Requirement Management, CHI 2007 workshop......Usability, Case Study, Software Engineering, Software Quality, Organizational Impact, Usability Requirement Management, CHI 2007 workshop...

  17. COSTMODL - AN AUTOMATED SOFTWARE DEVELOPMENT COST ESTIMATION TOOL

    Science.gov (United States)

    Roush, G. B.

    1994-01-01

    The cost of developing computer software consumes an increasing portion of many organizations' budgets. As this trend continues, the capability to estimate the effort and schedule required to develop a candidate software product becomes increasingly important. COSTMODL is an automated software development estimation tool which fulfills this need. Assimilating COSTMODL to any organization's particular environment can yield significant reduction in the risk of cost overruns and failed projects. This user-customization capability is unmatched by any other available estimation tool. COSTMODL accepts a description of a software product to be developed and computes estimates of the effort required to produce it, the calendar schedule required, and the distribution of effort and staffing as a function of the defined set of development life-cycle phases. This is accomplished by the five cost estimation algorithms incorporated into COSTMODL: the NASA-developed KISS model; the Basic, Intermediate, and Ada COCOMO models; and the Incremental Development model. This choice affords the user the ability to handle project complexities ranging from small, relatively simple projects to very large projects. Unique to COSTMODL is the ability to redefine the life-cycle phases of development and the capability to display a graphic representation of the optimum organizational structure required to develop the subject project, along with required staffing levels and skills. The program is menu-driven and mouse sensitive with an extensive context-sensitive help system that makes it possible for a new user to easily install and operate the program and to learn the fundamentals of cost estimation without having prior training or separate documentation. The implementation of these functions, along with the customization feature, into one program makes COSTMODL unique within the industry. COSTMODL was written for IBM PC compatibles, and it requires Turbo Pascal 5.0 or later and Turbo

  18. Development of Flexible Software Process Lines with Variability Operations

    DEFF Research Database (Denmark)

    Dohrmann, Patrick; Schramm, Joachim; Kuhrmann, Marco

    2016-01-01

    Context: A software process line helps to systematically develop and manage families of processes and, as part of this, variability operations provide means to modify and reuse pre-defined process assets. Objective: Our goal is to evaluate the feasibility of variability operations to support the ...... customization scenarios, and we found 87 different operation types. Conclusions: Although variability operations are only one instrument among others, our results suggest this instrument useful to implement variability in real-life software process lines.......Context: A software process line helps to systematically develop and manage families of processes and, as part of this, variability operations provide means to modify and reuse pre-defined process assets. Objective: Our goal is to evaluate the feasibility of variability operations to support...... the development of flexible software process lines. Method: We conducted a longitudinal study in which we studied 5 variants of the V-Modell XT process line for 2 years. Results: Our results show the variability operation instrument feasible in practice. We analyzed 616 operation exemplars addressing various...

  19. Software Development Using Object-First Approach: a New Learning Strategy

    OpenAIRE

    S Hura, Gurdeep

    2017-01-01

    Software Engineering approach deals with the Software Development (SD) that is aligned with design and development of software applications. The Software Development may be implemented in a variety of techniques but its implementation using a procedural paradigm and an imperative language seem to be more effective and efficient for the design and implementation of software applications. The procedural approach for Software Development offers advantages as this it may be used to teach some bas...

  20. Selecting a software development methodology. [of digital flight control systems

    Science.gov (United States)

    Jones, R. E.

    1981-01-01

    The state of the art analytical techniques for the development and verification of digital flight control software is studied and a practical designer oriented development and verification methodology is produced. The effectiveness of the analytic techniques chosen for the development and verification methodology are assessed both technically and financially. Technical assessments analyze the error preventing and detecting capabilities of the chosen technique in all of the pertinent software development phases. Financial assessments describe the cost impact of using the techniques, specifically, the cost of implementing and applying the techniques as well as the relizable cost savings. Both the technical and financial assessment are quantitative where possible. In the case of techniques which cannot be quantitatively assessed, qualitative judgements are expressed about the effectiveness and cost of the techniques. The reasons why quantitative assessments are not possible will be documented.

  1. Integrating HCI Specialists into Open Source Software Development Projects

    Science.gov (United States)

    Hedberg, Henrik; Iivari, Netta

    Typical open source software (OSS) development projects are organized around technically talented developers, whose communication is based on technical aspects and source code. Decision-making power is gained through proven competence and activity in the project, and non-technical end-user opinions are too many times neglected. In addition, also human-computer interaction (HCI) specialists have encountered difficulties in trying to participate in OSS projects, because there seems to be no clear authority and responsibility for them. In this paper, based on HCI and OSS literature, we introduce an extended OSS development project organization model that adds a new level of communication and roles for attending human aspects of software. The proposed model makes the existence of HCI specialists visible in the projects, and promotes interaction between developers and the HCI specialists in the course of a project.

  2. Lean Software Development: One Step at a Time

    Science.gov (United States)

    2010-04-01

    The Core Practices – • Universally Recommend Practices − Common across all Lean & Agile methodologies COPYRIGHT © 2008 THE BOEING COMPANY Part 1...Practices Several core practices are common to both Lean Practice 1: Automated Testing software development and Agile methodologies Practice 2...participation is a cornerstone of both Lean development and Agile methodologies : • Lean Concept − Specify value in the eyes of the customer. • Agile

  3. Self-service for software development projects and HPC activities

    Science.gov (United States)

    Husejko, M.; Høimyr, N.; Gonzalez, A.; Koloventzos, G.; Asbury, D.; Trzcinska, A.; Agtzidis, I.; Botrel, G.; Otto, J.

    2014-05-01

    This contribution describes how CERN has implemented several essential tools for agile software development processes, ranging from version control (Git) to issue tracking (Jira) and documentation (Wikis). Running such services in a large organisation like CERN requires many administrative actions both by users and service providers, such as creating software projects, managing access rights, users and groups, and performing tool-specific customisation. Dealing with these requests manually would be a time-consuming task. Another area of our CERN computing services that has required dedicated manual support has been clusters for specific user communities with special needs. Our aim is to move all our services to a layered approach, with server infrastructure running on the internal cloud computing infrastructure at CERN. This contribution illustrates how we plan to optimise the management of our of services by means of an end-user facing platform acting as a portal into all the related services for software projects, inspired by popular portals for open-source developments such as Sourceforge, GitHub and others. Furthermore, the contribution will discuss recent activities with tests and evaluations of High Performance Computing (HPC) applications on different hardware and software stacks, and plans to offer a dynamically scalable HPC service at CERN, based on affordable hardware.

  4. Hardware impacts to software development strategies - The history of the development of the Mars Observer Payload Data Subsystem embedded real-time software

    Science.gov (United States)

    Elson, Anne B.

    1989-01-01

    Ways in which parallel hardware development and high level requirements changes have influenced Mars Observer Payload Data Subsystem (PDS) flight software development are discussed. Particular attention is given to ways in which the evolving hardware product and changing requirements have led to repeated modification to software requirements, design, code, and test tools and a delay in the closure of corresponding phases of the software development life cycle. Design and implementation problems which were encountered during the PDS software development effort are described.

  5. Software Development Process Changes in the Telecommunications Industry

    Directory of Open Access Journals (Sweden)

    John Kevin Doyle

    2006-06-01

    Full Text Available The tremendous changes in the telecommunications business in the last several years drove changes in the software development processes of telecommunications equipment providers. We compare changes in these very large projects, in two companies, with those proposed in the Theory of Constraints / Critical Chains, Extreme Programming, and Agile development models. The 2000s have been a time of significant challenge in the telecommunications equipment business. Telecommunications service providers have excess equipment capacity. Many are waiting for next generation telephone switches that will simultaneously lower operating costs and enable additional revenue generation. The large service providers have drastically reduced their capital and expense purchases. Many small service providers, particularly the dot-coms, went bankrupt; much of their equipment is on the secondary market, at a fraction of the original cost. Thus the equipment market has significantly shrunk, and the equipment providers have been reducing expenses, while continuing to deliver software and hardware equipment at the high quality level required by the service providers. This drove many changes in the software development process. While the process changes are reported in two telecommunication equipment development organizations, the changes are applicable in any product development organization.

  6. Advancing Software Development for a Multiprocessor System-on-Chip

    Directory of Open Access Journals (Sweden)

    Stephen Bique

    2007-06-01

    Full Text Available A low-level language is the right tool to develop applications for some embedded systems. Notwithstanding, a high-level language provides a proper environment to develop the programming tools. The target device is a system-on-chip consisting of an array of processors with only local communication. Applications include typical streaming applications for digital signal processing. We describe the hardware model and stress the advantages of a flexible device. We introduce IDEA, a graphical integrated development environment for an array. A proper foundation for software development is a UML and standard programming abstractions in object-oriented languages.

  7. Model for Simulating a Spiral Software-Development Process

    Science.gov (United States)

    Mizell, Carolyn; Curley, Charles; Nayak, Umanath

    2010-01-01

    A discrete-event simulation model, and a computer program that implements the model, have been developed as means of analyzing a spiral software-development process. This model can be tailored to specific development environments for use by software project managers in making quantitative cases for deciding among different software-development processes, courses of action, and cost estimates. A spiral process can be contrasted with a waterfall process, which is a traditional process that consists of a sequence of activities that include analysis of requirements, design, coding, testing, and support. A spiral process is an iterative process that can be regarded as a repeating modified waterfall process. Each iteration includes assessment of risk, analysis of requirements, design, coding, testing, delivery, and evaluation. A key difference between a spiral and a waterfall process is that a spiral process can accommodate changes in requirements at each iteration, whereas in a waterfall process, requirements are considered to be fixed from the beginning and, therefore, a waterfall process is not flexible enough for some projects, especially those in which requirements are not known at the beginning or may change during development. For a given project, a spiral process may cost more and take more time than does a waterfall process, but may better satisfy a customer's expectations and needs. Models for simulating various waterfall processes have been developed previously, but until now, there have been no models for simulating spiral processes. The present spiral-process-simulating model and the software that implements it were developed by extending a discrete-event simulation process model of the IEEE 12207 Software Development Process, which was built using commercially available software known as the Process Analysis Tradeoff Tool (PATT). Typical inputs to PATT models include industry-average values of product size (expressed as number of lines of code

  8. METRICS DEVELOPMENT FOR THE QUALIS OF SOFTWARE TECHNICAL PRODUCTION

    Directory of Open Access Journals (Sweden)

    Marinho Jorge Scarpi

    Full Text Available Objective: To recommend metrics to qualify software production and to propose guidelines for the CAPES quadrennial evaluation of the Post-Graduation Programs of Medicine III about this issue. Method: Identification of the development process quality features, of the product attributes and of the software use, determined by Brazilian Association of Technical Standards (ABNT, International Organization Standardization (ISO and International Electrotechnical (IEC, important in the perspective of the CAPES Medicine III Area correlate users, basing the creation proposal of metrics aiming to be used on four-year evaluation of Medicine III. Results: The in use software quality perception by the user results from the provided effectiveness, productivity, security and satisfaction that originate from its characteristics of functionality, reliability, usability, efficiency, maintainability and portability (in use metrics quality. This perception depends on the specific use scenario. Conclusion: The software metrics should be included in the intellectual production of the program, considering the system behavior measurements results obtained by users' performance evaluation through out the favorable responses punctuation sum for the six in use metrics quality (27 sub-items, 0 to 2 points each and for quality perception proof (four items, 0 to 10 points each. It will be considered as very good (VG 85 to 94 points; good (G 75 to 84 points; regular (R 65 to 74 points; weak (W 55 to 64 points; poor (P <55 points.

  9. Software safety analysis techniques for developing safety critical software in the digital protection system of the LMR

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jang Soo; Cheon, Se Woo; Kim, Chang Hoi; Sim, Yun Sub

    2001-02-01

    This report has described the software safety analysis techniques and the engineering guidelines for developing safety critical software to identify the state of the art in this field and to give the software safety engineer a trail map between the code and standards layer and the design methodology and documents layer. We have surveyed the management aspects of software safety activities during the software lifecycle in order to improve the safety. After identifying the conventional safety analysis techniques for systems, we have surveyed in details the software safety analysis techniques, software FMEA(Failure Mode and Effects Analysis), software HAZOP(Hazard and Operability Analysis), and software FTA(Fault Tree Analysis). We have also surveyed the state of the art in the software reliability assessment techniques. The most important results from the reliability techniques are not the specific probability numbers generated, but the insights into the risk importance of software features. To defend against potential common-mode failures, high quality, defense-in-depth, and diversity are considered to be key elements in digital I and C system design. To minimize the possibility of CMFs and thus increase the plant reliability, we have provided D-in-D and D analysis guidelines.

  10. Robotized semiautomatic motorcycle transmission development. Electronic and software design

    Directory of Open Access Journals (Sweden)

    Neghină Mihai

    2017-01-01

    Full Text Available In this paper, we propose an electrical design (implemented on a PCB board and an accompanying software design for controlling the automatic gear change. The designs complement the mechanical solutions developed in Part 1. The paper also analyses the issues encountered during the intermediate steps of the development of the electronic module, which is expected to be small and adaptable enough to be installed on a motorcycle without changing its ergonomics. The control software runs on the Arduino Nano board and is built as a state machine with one idle state, five active states that cover different stages of the gear change and one error state for preventing malfunctions in case of an unexpected event. The sketch uses 5,760 bytes (or 18% of program storage space and 706 bytes (or 34% of the dynamic memory.

  11. Development of educational PC software for visually impaired children

    OpenAIRE

    Holá, Klára

    2010-01-01

    The diploma work is focused on development of educational PC software dedicated to visually impaired children. It is intended for junior school-aged children with visual abilities in category of middle and high level of low vision and also for children with disorders of binocular vision. The intention of this sotware is education of visually impaired children especially in domain of knowledge about the world of animals. It also helps children to reeducate their vision abilities.

  12. Comparison between Agile and Traditional software development methodologies

    OpenAIRE

    JAVANMARD, Mahdi; ALIAN, Maryam

    2015-01-01

    Abstract.This paper is a review  research about the features of the agile and heavy (traditional) software development methodologies and comparisons between them based on: Approach, Success Measurement, Project size, Management Style, Perspective to Change, Culture, Documentation, Emphasis, Cycles, Domain, Upfront Planning, Return on Investment and Team Size. The important difference between agile and heavy methodologies is  the adaptability for project changes. In agile methodologies changes...

  13. Development and experimental validation of a protein design software

    OpenAIRE

    Stiebritz, Martin

    2008-01-01

    Computational protein design - understood as the prediction of an amino acid sequence that will adopt a given 3-dimensional structure associated with a desired function - offers the promising perspective of tailoring proteins according to special needs. From a more fundamental point of view, it improves our understanding of protein architecture, folding and dynamics. Here, the development and experimental validation of a protein design software - MUMBO - is described. The current implementati...

  14. Recent advances in the development of simulation software

    Directory of Open Access Journals (Sweden)

    P.S Kruger

    2003-12-01

    Full Text Available Since the first microcomputer simulation languages became available significant developments have taken place such as major enhancements of existing languages, the availability of animation capabilities, the development of simulation systems specifically designed for microcomputers, domain dependent simulators and powerful user interfaces. This paper will attempt to identify, analyse and discuss these trends in the development of microcomputer simulation software, the associated changes that are taking place in the application of the simulation modelling approach and the relevant implications for the simulation user.

  15. A Software Development Simulation Model of a Spiral Process

    Science.gov (United States)

    Mizell, Carolyn; Malone, Linda

    2007-01-01

    There is a need for simulation models of software development processes other than the waterfall because processes such as spiral development are becoming more and more popular. The use of a spiral process can make the inherently difficult job of cost and schedule estimation even more challenging due to its evolutionary nature, but this allows for a more flexible process that can better meet customers' needs. This paper will present a discrete event simulation model of spiral development that can be used to analyze cost and schedule effects of using such a process in comparison to a waterfall process.

  16. Domain analysis for the reuse of software development experiences

    Science.gov (United States)

    Basili, V. R.; Briand, L. C.; Thomas, W. M.

    1994-01-01

    We need to be able to learn from past experiences so we can improve our software processes and products. The Experience Factory is an organizational structure designed to support and encourage the effective reuse of software experiences. This structure consists of two organizations which separates project development concerns from organizational concerns of experience packaging and learning. The experience factory provides the processes and support for analyzing, packaging, and improving the organization's stored experience. The project organization is structured to reuse this stored experience in its development efforts. However, a number of questions arise: What past experiences are relevant? Can they all be used (reused) on our current project? How do we take advantage of what has been learned in other parts of the organization? How do we take advantage of experience in the world-at-large? Can someone else's best practices be used in our organization with confidence? This paper describes approaches to help answer these questions. We propose both quantitative and qualitative approaches for effectively reusing software development experiences.

  17. Development of remote control software for multiformat test signal generator

    Directory of Open Access Journals (Sweden)

    Gao Yang

    2017-01-01

    Full Text Available The multi format test signal generator mentioned in this paper is the video signal generator named TG8000 produced by Tektronix Company. I will introduce the function about remote control for signal generator, how to connect the computer to the instrument, and how to remote control. My topic uses my computer to connect the instrument through the 10/100/1000 BASE-T port on the rear panel of TG8000. Then I write program to transmit SCPI (Standard Commands for Programmable Instruments to control TG8000. The application is running on the Windows operating system, the programming language is C#, development environment is Microsoft Visual Studio 2010, using the TCP/IP protocol based on Socket. And the method of remote control refers to the application called TGSetup which is developed by Tektronix Company. This paper includes a brief summary of the basic principle, and introduce for details about the process of remote control software development, and how to use my software. In the end, I will talk about the advantages of my software compared with another one.

  18. An Extensive Study on the Future of Modeling in Software Development

    OpenAIRE

    Avadhesh Kumar Gupta; Satish Kumar

    2014-01-01

    In recent years, software modeling realized much attention in the field of software research and development due to demonstrating the capability of decreases time and cost of software development and also improves overall quality of software development process in the form of understanding, communications, correctness, traceability, and developer productivity etc. Modeling has great potential to proven mainstream of software development, especially after using analysis and design phase to im...

  19. Software safety analysis activities during software development phases of the Microwave Limb Sounder (MLS)

    Science.gov (United States)

    Shaw, Hui-Yin; Sherif, Joseph S.

    2004-01-01

    This paper describes the MLS software safety analysis activities and documents the SSA results. The scope of this software safety effort is consistent with the MLS system safety definition and is concentrated on the software faults and hazards that may have impact on the personnel safety and the environment safety.

  20. Inequalities in Open Source Software Development: Analysis of Contributor's Commits in Apache Software Foundation Projects.

    Science.gov (United States)

    Chełkowski, Tadeusz; Gloor, Peter; Jemielniak, Dariusz

    2016-01-01

    While researchers are becoming increasingly interested in studying OSS phenomenon, there is still a small number of studies analyzing larger samples of projects investigating the structure of activities among OSS developers. The significant amount of information that has been gathered in the publicly available open-source software repositories and mailing-list archives offers an opportunity to analyze projects structures and participant involvement. In this article, using on commits data from 263 Apache projects repositories (nearly all), we show that although OSS development is often described as collaborative, but it in fact predominantly relies on radically solitary input and individual, non-collaborative contributions. We also show, in the first published study of this magnitude, that the engagement of contributors is based on a power-law distribution.

  1. IDENTIFICATION AND QUANTIFICATION OF FACTORS AFFECTING REUSABILITY OF OPEN SOURCE SOFTWARE IN REUSE-INTENSIVE SOFTWARE DEVELOPMENT

    Directory of Open Access Journals (Sweden)

    Aized Amin Soof

    2017-02-01

    Full Text Available Open Source Software (OSS is one of the emerging areas in software engineering. Reuse of OSS is employed in reuse-intensive software development such as Component Based Software Development and Software Product Lines. OSS is gaining the interest of the software development community due to its enormous benefits. The context of this study is the identification and quantification of factors affecting reusability of OSS in reuse-intensive software development. The use of OSS in the systematic reuse of software, such as in Software Product Lines (SPLs is a new phenomenon. Therefore, the aim of this study is to identify and quantify the factors affecting the reusability of OSS in reuse-intensive software development, especially for SPLs. In this study, a mixed methods based approach is employed to identify the factors affecting the reusability of OSS. Interviews are conducted with experts in this field as the qualitative part, followed by a survey, experiments and a statistical analysis. The factors identified during the interviews are ranked by software engineers in a survey. Experiment is conducted to assess the reusability of open source packages. The factors are validated by conducting a statistical analysis of the results of the experiments. A set of nine factors were identified as a result of the qualitative study. A model was formed on the basis of the findings of interviews and a survey. It includes five factors. These were statistically analyzed by applying the model to 77 open source packages. A set of nine factors were identified as affecting reusability of OSS in a reuse-intensive development environment. Five of them were validated at the code level. The statistical results show a positive correlation between reusability and the identified factors.

  2. SCOS 2: An object oriented software development approach

    Science.gov (United States)

    Symonds, Martin; Lynenskjold, Steen; Mueller, Christian

    1994-01-01

    The Spacecraft Control and Operations System 2 (SCOS 2), is intended to provide the generic mission control system infrastructure for future ESA missions. It represents a bold step forward in order to take advantage of state-of-the-art technology and current practices in the area of software engineering. Key features include: (1) use of object oriented analysis and design techniques; (2) use of UNIX, C++ and a distributed architecture as the enabling implementation technology; (3) goal of re-use for development, maintenance and mission specific software implementation; and (4) introduction of the concept of a spacecraft control model. This paper touches upon some of the traditional beliefs surrounding Object Oriented development and describes their relevance to SCOS 2. It gives rationale for why particular approaches were adopted and others not, and describes the impact of these decisions. The development approach followed is discussed, highlighting the evolutionary nature of the overall process and the iterative nature of the various tasks carried out. The emphasis of this paper is on the process of the development with the following being covered: (1) the three phases of the SCOS 2 project - prototyping & analysis, design & implementation and configuration / delivery of mission specific systems; (2) the close cooperation and continual interaction with the users during the development; (3) the management approach - the split between client staff, industry and some of the required project management activities; (4) the lifecycle adopted being an enhancement of the ESA PSS-05 standard with SCOS 2 specific activities and approaches defined; and (5) an examination of some of the difficulties encountered and the solutions adopted. Finally, the lessons learned from the SCOS 2 experience are highlighted, identifying those issues to be used as feedback into future developments of this nature. This paper does not intend to describe the finished product and its operation

  3. [Development and verification of Chinese dietary exposure evaluation model software].

    Science.gov (United States)

    Liu, Pei; Li, Jing-xin; Sun, Jin-fang; Xue, Jianping; Chen, Bing-wei; Zhang, Hong; Yu, Xiao-jin; Wang, Can-nan; Yuan, Bao-jun; Ma, Yong-jian; Tian, Zi-hua

    2010-03-01

    To develop the dietary exposure evaluation model software accredited of Chinese intellectual property rights and to verify the rationality and accuracy of the results from the probabilistic model in Chinese dietary exposure evaluation model software according to international standards. The software of SAS was used to build various evaluation model based on the data from Chinese dietary survey and the chemical compound in food surveillance and to design an operation interface. The results from probabilistic dietary exposure model for children 2 - 7 years old were compared with that from duplicate portion study of 2-7 years children dietary exposure in Jinhu, Jiangsu province in order to analyze the rationality of model. The results from probabilistic model of dietary exposure were compared with the results from @Risk software to verify the correction of the probabilistic model by using the same data of randomly selected 10 000 study subjects from national dietary survey. While, the mean drift was used as an internal index to illustrate the accuracy of the computation. Chinese dietary exposure evaluation software was developed successfully. On the rationality, the results from probabilistic model were lower than that from the point estimation (e.g., cucumber: the result of point estimation of acephate was 4.78 microg x kg(-1) x d(-1), while the results of probabilistic model which was 0.39 microg x kg(-1) x d(-1)). Meanwhile the results from probabilistic model were higher than the results of duplicate portion study (on the P95, the result of probabilistic model of Pb exposure in children was 11.08 microg x kg(-1) x d(-1), while the results of duplicate portion study was 5.75 microg x kg(-1) x d(-1)). On accuracy, the results from @Risk and the probabilistic model were highly consistent (on the P95, the result of probabilistic assessment of acephate diet exposure was 4.27 microg x kg(-1) x d(-1), while the results of duplicate portion study was 4.24 microg x kg(-1

  4. Software Development for Asteroid and Variable Star Research

    Science.gov (United States)

    Sweckard, Teaghen; Clason, Timothy; Kenney, Jessica; Wuerker, Wolfgang; Palser, Sage; Giles, Tucker; Linder, Tyler; Sanchez, Richard

    2018-01-01

    The process of collecting and analyzing light curves from variable stars and asteroids is almost identical. In 2016 a collaboration was created to develop a simple fundamental way to study both asteroids and variable stars using methods that would allow the process to be repeated by middle school and high school students.Using robotic telescopes at Cerro Tololo (Chile), Yerkes Observatory (US), and Stone Edge Observatory (US) data were collected on RV Del and three asteroids. It was discovered that the only available software program which could be easily installed on lab computers was MPO Canopus. However, after six months it was determined that MPO Canopus was not an acceptable option because of the steep learning curve, lack of documentation and technical support.Therefore, the project decided that the best option was to design our own python based software. Using python and python libraries we developed code that can be used for photometry and can be easily changed to the user's needs. We accomplished this by meeting with our mentor astronomer, Tyler Linder, and in the beginning wrote two different programs, one for asteroids and one for variable stars. In the end, though, we chose to combine codes so that the program would be capable of performing photometry for both moving and static objects.The software performs differential photometry by comparing the magnitude of known reference stars to the object being studied. For asteroids, the image timestamps are used to obtain ephemeris of the asteroid from JPL Horizons automatically.

  5. Cloud Computing as an Enabler of Agile Global Software Development

    Directory of Open Access Journals (Sweden)

    Maureen Tanner

    2016-05-01

    Full Text Available Agile global software development (AGSD is an increasingly prevalent software development strategy, as organizations hope to realize the benefits of accessing a larger resource pool of skilled labor, at a potentially reduced cost, while at the same time delivering value incrementally and iteratively. However, the distributed nature of AGSD creates geographic, temporal, socio-cultural distances that challenge collaboration between project stakeholders. The Cloud Computing (CC service models of Infrastructure as a Service (IaaS, Platform as a Service (PaaS, and Software as a Service (SaaS are similar to the aspirant qualities of AGSD as they provide services that are globally accessible, efficient, and stable, with lower predictable operating costs that scale to meet the computational demand. This study focused on the 12 agile principles upon which all agile methodologies are based, therein potentially increasing the potential for the findings to be generalized. Domestication Theory was used to assist in understanding how cloud technologies were appropriated in support of AGSD. The research strategy took the form of case study research. The findings suggest that some of the challenges in applying the agile principles in AGSD may be overcome by using CC.

  6. Development, comparison, and evaluation of software for radial distortion elimination

    Science.gov (United States)

    Papadaki, A. I.; Georgopoulos, A.

    2015-05-01

    Lately the interest of Computer Vision and Photogrammetry community has been focused on the automation of the processes of identification and elimination of the radial distortion, with the aim to correct the image coordinates and finally to obtain digital images with reliable geometric information. This effort has reached the point of development of commercial or free image processing software, claiming that it can automatically identify and remove the radial distortion from an image. In this paper in depth research has been conducted about the radial distortion and the methods of its identification and elimination. Specifically, it has been attempted to evaluate software as the aforementioned, about its effectiveness, accuracy and applicability on the elimination of the radial distortion from images. For the attainment of the desired aim, four different methods of comparison and evaluation of the performance of the software, with respect to the correction of an image, have been employed. The applied methods are (i) the optical evaluation of the produced digital images, (ii) the subtraction of the images, (iii) the comparison of the curves of the remaining radial distortion in the images and (iv) the comparison of the results from the orientation of an image pair. However, it was really important to have a benchmark for the evaluation, in order to ensure the objectivity and accuracy of the comparison. Therefore, a new reliable algorithm has been developed, which was of known and controllable accuracy. The results of these comparisons are presented and evaluated for their reliability and usefulness.

  7. Development of integrated support software for clinical nutrition

    Directory of Open Access Journals (Sweden)

    Pedro Siquier Homar

    2015-09-01

    Full Text Available Objectives: to develop an integrated computer software application for specialized nutritional support, integrated in the electronic clinical record, which detects automatically and early those undernourished patients or at risk of developing undernourishment, determining points of opportunity for improvement and evaluation of the results. Methods: the quality standards published by the Nutrition Work Group of the Spanish Society of Hospital Pharmacy (SEFH and the recommendations by the Pharmacy Group of the Spanish Society of Parenteral and Enteral Nutrition (SENPE have been taken into account. According to these quality standards, the nutritional support has to include the following healthcare stages or sub-processes: nutritional screening, nutritional assessment, plan for nutritional care, prescription, preparation and administration. Results: this software allows to conduct, in an automated way, a specific nutritional assessment for those patients with nutritional risk, implementing, if necessary, a nutritional treatment plan, conducting follow-up and traceability of outcomes derived from the implementation of improvement actions, and quantifying to what extent our practice is close to the established standard. Conclusions: this software allows to standardize the specialized nutritional support from a multidisciplinary point of view, introducing the concept of quality control per processes, and including patient as the main customer

  8. Integrated risk assessment for spent fuel transportation using developed software

    Energy Technology Data Exchange (ETDEWEB)

    Yun, Mi Rae; Christian, Robby; Kim, Bo Gyung; Almomani, Belal; Ham, Jae Hyun; Kang, Gook Hyun [KAIST, Daejeon (Korea, Republic of); Lee, Sang hoon [Keimyung University, Daegu (Korea, Republic of)

    2016-05-15

    As on-site spent fuel storage meets limitation of their capacity, spent fuel need to be transported to other place. In this research, risk of two ways of transportation method, maritime transportation and on-site transportation, and interim storage facility were analyzed. Easier and integrated risk assessment for spent fuel transportation will be possible by applying this software. Risk assessment for spent fuel transportation has not been researched and this work showed a case for analysis. By using this analysis method and developed software, regulators can get some insights for spent fuel transportation. For example, they can restrict specific region for preventing ocean accident and also they can arrange spend fuel in interim storage facility avoiding most risky region which have high risk from aircraft engine shaft. Finally, they can apply soft material on the floor for specific stage for on-site transportation. In this software, because we targeted Korea, we need to use Korean reference data. However, there were few Korean reference data. Especially, there was no food chain data for Korean ocean. In MARINRAD, they used steady state food chain model, but it is far from reality. Therefore, to get Korean realistic reference data, dynamic food chain model for Korean ocean need to be developed.

  9. Assessing ergonomic risks of software: Development of the SEAT.

    Science.gov (United States)

    Peres, S Camille; Mehta, Ranjana K; Ritchey, Paul

    2017-03-01

    Software utilizing interaction designs that require extensive dragging or clicking of icons may increase users' risks for upper extremity cumulative trauma disorders. The purpose of this research is to develop a Self-report Ergonomic Assessment Tool (SEAT) for assessing the risks of software interaction designs and facilitate mitigation of those risks. A 28-item self-report measure was developed by combining and modifying items from existing industrial ergonomic tools. Data were collected from 166 participants after they completed four different tasks that varied by method of input (touch or keyboard and mouse) and type of task (selecting or typing). Principal component analysis found distinct factors associated with stress (i.e., demands) and strain (i.e., response). Repeated measures analyses of variance showed that participants could discriminate the different strain induced by the input methods and tasks. However, participants' ability to discriminate between the stressors associated with that strain was mixed. Further validation of the SEAT is necessary but these results indicate that the SEAT may be a viable method of assessing ergonomics risks presented by software design. Copyright © 2016 Elsevier Ltd. All rights reserved.

  10. [Development of integrated support software for clinical nutrition].

    Science.gov (United States)

    Siquier Homar, Pedro; Pinteño Blanco, Manel; Calleja Hernández, Miguel Ángel; Fernández Cortés, Francisco; Martínez Sotelo, Jesús

    2015-09-01

    to develop an integrated computer software application for specialized nutritional support, integrated in the electronic clinical record, which detects automatically and early those undernourished patients or at risk of developing undernourishment, determining points of opportunity for improvement and evaluation of the results. the quality standards published by the Nutrition Work Group of the Spanish Society of Hospital Pharmacy (SEFH) and the recommendations by the Pharmacy Group of the Spanish Society of Parenteral and Enteral Nutrition (SENPE) have been taken into account. According to these quality standards, the nutritional support has to include the following healthcare stages or sub-processes: nutritional screening, nutritional assessment, plan for nutritional care, prescription, preparation and administration. this software allows to conduct, in an automated way, a specific nutritional assessment for those patients with nutritional risk, implementing, if necessary, a nutritional treatment plan, conducting follow-up and traceability of outcomes derived from the implementation of improvement actions, and quantifying to what extent our practice is close to the established standard. this software allows to standardize the specialized nutritional support from a multidisciplinary point of view, introducing the concept of quality control per processes, and including patient as the main customer. Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.

  11. Barriers to Learning in Agile Software Development Projects

    DEFF Research Database (Denmark)

    Babb, Jeffry S.; Hoda, Rashina; Nørbjerg, Jacob

    2013-01-01

    The adoption of agile methods promises many advantages for individual, team, and organizational learning. However, environmental, structural, and organizational/cultural constraints often find teams adapting agile software development methods rather than engaging in full adoption. We present...... results from two qualitative studies of teams and organizations that have, in many cases, adapted agile software methods to suit their needs through the omission or alteration of aspects of the method. In many cases, aspects of an agile method that are most related to learning were those that were...... modified or omitted. This paper utilizes the results of these studies to identify common and emergent barriers to learning. Often these barriers to learning exist according to organizational culture and the extent to which that culture influences attitudes, norms, and behaviors pertaining to learning. We...

  12. Software development kit for a compact cryo-refrigerator

    Science.gov (United States)

    Gardiner, J.; Hamilton, J.; Lawton, J.; Knight, K.; Wilson, A.; Spagna, S.

    2017-12-01

    This paper introduces a Software Development Kit (SDK) that enables the creation of custom software applications that automate the control of a cryo-refrigerator (Quantum Design model GA-1) in third party instruments. A remote interface allows real time tracking and logging of critical system diagnostics such as pressures, temperatures, valve states and run modes. The helium compressor scroll capsule speed and Gifford-McMahon (G-M) cold head speed can be manually adjusted over a serial communication line via a CAN interface. This configuration optimizes cooling power, while reducing wear on moving components thus extending service life. Additionally, a proportional speed control mode allows for automated throttling of speeds based on temperature or pressure feedback from a 3rd party device. Warm up and cool down modes allow 1st and 2nd stage temperatures to be adjusted without the use of external heaters.

  13. Spaceport Command and Control System Automated Verification Software Development

    Science.gov (United States)

    Backus, Michael W.

    2017-01-01

    For as long as we have walked the Earth, humans have always been explorers. We have visited our nearest celestial body and sent Voyager 1 beyond our solar system1 out into interstellar space. Now it is finally time for us to step beyond our home and onto another planet. The Spaceport Command and Control System (SCCS) is being developed along with the Space Launch System (SLS) to take us on a journey further than ever attempted. Within SCCS are separate subsystems and system level software, each of which have to be tested and verified. Testing is a long and tedious process, so automating it will be much more efficient and also helps to remove the possibility of human error from mission operations. I was part of a team of interns and full-time engineers who automated tests for the requirements on SCCS, and with that was able to help verify that the software systems are performing as expected.

  14. 2015 Federated Conference on Software Development and Object Technologies

    CERN Document Server

    Kostolny, Jozef; Gratkowski, Tomasz

    2017-01-01

    This book presents the proceedings of the International Conference SDOT which was organized at the University in Žilina, Faculty of Management Sciences and Informatics, Slovak Republic in November 19, 2015. The conference was truly international both in terms of the amount of foreign contributions and in terms of composition of steering and scientific committees. The book and the conference serves as a platform of professional exchange of knowledge and experience for the latest trends in software development and object-oriented technologies (theory and practice). This proceedings present information on the latest developments and mediate the exchange of experience between practitioners and academia. .

  15. Efficient Development and Verification of Safe Railway Control Software

    DEFF Research Database (Denmark)

    Haxthausen, Anne Elisabeth; Peleska, Jan

    2013-01-01

    In this book, the authors present current research on the types, design and safety issues of railways. Topics discussed include the acoustic characteristics of noise in train stations; monitoring railway structure conditions and opportunities to use wireless sensor networks as tools to improve...... the monitoring process; hydraulic absorbers as dampers to dissipate the energy of oscillations in railway electric equipment; development of train fare calculation and adjustment systems using VDM++; efficient development and verification of safe railway control software; and evolution of the connectivity...

  16. A Stigmergy Approach for Open Source Software Developer Community Simulation

    Energy Technology Data Exchange (ETDEWEB)

    Cui, Xiaohui [ORNL; Beaver, Justin M [ORNL; Potok, Thomas E [ORNL; Pullum, Laura L [ORNL; Treadwell, Jim N [ORNL

    2009-01-01

    The stigmergy collaboration approach provides a hypothesized explanation about how online groups work together. In this research, we presented a stigmergy approach for building an agent based open source software (OSS) developer community collaboration simulation. We used group of actors who collaborate on OSS projects as our frame of reference and investigated how the choices actors make in contribution their work on the projects determinate the global status of the whole OSS projects. In our simulation, the forum posts and project codes served as the digital pheromone and the modified Pierre-Paul Grasse pheromone model is used for computing developer agent behaviors selection probability.

  17. Hierarchy Software Development Framework (h-dp-fwk) project

    Science.gov (United States)

    Zaytsev, A.

    2010-04-01

    Hierarchy Software Development Framework provides a lightweight tool for building portable modular applications for performing automated data analysis tasks in a batch mode. The history of design and development activities devoted to the project has begun in March 2005 and from the very beginning it was targeting the case of building experimental data processing applications for the CMD-3 experiment which is being commissioned at Budker Institute of Nuclear Physics (BINP, Novosibirsk, Russia). Its design addresses the generic case of modular data processing application operating within the well defined distributed computing environment. The main features of the framework are modularity, built-in message and data exchange mechanisms, XInclude and XML schema enabled XML configuration management tools, dedicated log management tools, internal debugging tools, both dynamic and static module chains support, internal DSO version and consistency checking, well defined API for developing specialized frameworks. It is supported on Scientific Linux 4 and 5 and planned to be ported to other platforms as well. The project is provided with the comprehensive set of technical documentation and users' guides. The licensing schema for the source code, binaries and documentation implies that the product is free for non-commercial use. Although the development phase is not over and many features are to be implemented yet the project is considered ready for public use and creating applications in various fields including development of events reconstruction software for small and moderate scale HEP experiments.

  18. Software and Hardware Developments For a Mobile Manipulator Control

    Directory of Open Access Journals (Sweden)

    F. Abdessemed

    2008-12-01

    Full Text Available In this paper, we present the hardware and software architectures of an experimental real time control system of a mobile manipulator that performs tasks of manipulating objects in an environment of a large space. The mechanical architecture is a manipulator arm mounted on a mobile platform. In this work we show how one can implement an imbedded system, which includes the hardware and the software. The system makes use of a PC as the host and constitutes the high level layer. It is configured in such a way that it performs all the input-output interface operations; and is composed of different modules that constitute the software making up the required operations to be executed in a scheduling manner in order to meet the requirements of the real time control. In this paper, we also focus on the development of the generalized trajectory generation for the case of tasks where only one subsystem is considered to move and when the whole system is in permanent movement to achieve a particular task either in a free environment, or in presence of obstacles.

  19. Software Testing and Verification in Climate Model Development

    Science.gov (United States)

    Clune, Thomas L.; Rood, RIchard B.

    2011-01-01

    Over the past 30 years most climate models have grown from relatively simple representations of a few atmospheric processes to a complex multi-disciplinary system. Computer infrastructure over that period has gone from punch card mainframes to modem parallel clusters. Model implementations have become complex, brittle, and increasingly difficult to extend and maintain. Existing verification processes for model implementations rely almost exclusively upon some combination of detailed analysis of output from full climate simulations and system-level regression tests. In additional to being quite costly in terms of developer time and computing resources, these testing methodologies are limited in terms of the types of defects that can be detected, isolated and diagnosed. Mitigating these weaknesses of coarse-grained testing with finer-grained "unit" tests has been perceived as cumbersome and counter-productive. In the commercial software sector, recent advances in tools and methodology have led to a renaissance for systematic fine-grained testing. We discuss the availability of analogous tools for scientific software and examine benefits that similar testing methodologies could bring to climate modeling software. We describe the unique challenges faced when testing complex numerical algorithms and suggest techniques to minimize and/or eliminate the difficulties.

  20. METRICS DEVELOPMENT FOR THE QUALIS OF SOFTWARE TECHNICAL PRODUCTION.

    Science.gov (United States)

    Scarpi, Marinho Jorge

    2015-01-01

    To recommend metrics to qualify software production and to propose guidelines for the CAPES quadrennial evaluation of the Post-Graduation Programs of Medicine III about this issue. Identification of the development process quality features, of the product attributes and of the software use, determined by Brazilian Association of Technical Standards (ABNT), International Organization Standardization (ISO) and International Electrotechnical (IEC), important in the perspective of the CAPES Medicine III Area correlate users, basing the creation proposal of metrics aiming to be used on four-year evaluation of Medicine III. The in use software quality perception by the user results from the provided effectiveness, productivity, security and satisfaction that originate from its characteristics of functionality, reliability, usability, efficiency, maintainability and portability (in use metrics quality). This perception depends on the specific use scenario. The software metrics should be included in the intellectual production of the program, considering the system behavior measurements results obtained by users' performance evaluation through out the favorable responses punctuation sum for the six in use metrics quality (27 sub-items, 0 to 2 points each) and for quality perception proof (four items, 0 to 10 points each). It will be considered as very good (VG) 85 to 94 points; good (G) 75 to 84 points; regular (R) 65 to 74 points; weak (W) 55 to 64 points; poor (P) software propondo diretrizes para a avaliação dos Programas de Pós-Graduação da Medicina III. Identificação das características de qualidade para o processo de desenvolvimento, para os atributos do produto e para o uso de software, determinadas pela Associação Brasileira de Normas Técnicas (ABNT), International Organization Standardization (ISO) e International Electrotechnical (IEC), importantes na perspectiva dos usuários correlatos da Área Medicina III da CAPES, embasando a criação de proposta

  1. Spaceport Command and Control System - Support Software Development

    Science.gov (United States)

    Tremblay, Shayne

    2016-01-01

    The Information Architecture Support (IAS) Team, the component of the Spaceport Command and Control System (SCCS) that is in charge of all the pre-runtime data, was in need of some report features to be added to their internal web application, Information Architecture (IA). Development of these reports is crucial for the speed and productivity of the development team, as they are needed to quickly and efficiently make specific and complicated data requests against the massive IA database. These reports were being put on the back burner, as other development of IA was prioritized over them, but the need for them resulted in internships being created to fill this need. The creation of these reports required learning Ruby on Rails development, along with related web technologies, and they will continue to serve IAS and other support software teams and their IA data needs.

  2. Minimizing total tardiness in a software developing company

    Directory of Open Access Journals (Sweden)

    Ícaro Ludwig

    2013-03-01

    Full Text Available Small companies in service sectors, such as software developers, usually rely on manual-based programming tasks. That programming yields satisfactory results for small task lists, but leads to managerial difficulties as a large number of tasks increases task delays. This paper aims at using scheduling tools to minimize such delays. For that it proposes two heuristics for task scheduling based on the following steps: (i define an initial order for tasks, (ii distribute each task to development teams, and (iii schedule the tasks in each development team aimed at minimizing total tardiness. The proposed approach reduced the total tardiness in simulated in real data, simplified the process of scheduling and provided better tracking of the development process.

  3. Software Engineering Research/Developer Collaborations (C104)

    Science.gov (United States)

    Shell, Elaine; Shull, Forrest

    2005-01-01

    The goal of this collaboration was to produce Flight Software Branch (FSB) process standards for software inspections which could be used across three new missions within the FSB. The standard was developed by Dr. Forrest Shull (Fraunhofer Center for Experimental Software Engineering, Maryland) using the Perspective-Based Inspection approach, (PBI research has been funded by SARP) , then tested on a pilot Branch project. Because the short time scale of the collaboration ruled out a quantitative evaluation, it would be decided whether the standard was suitable for roll-out to other Branch projects based on a qualitative measure: whether the standard received high ratings from Branch personnel as to usability and overall satisfaction. The project used for piloting the Perspective-Based Inspection approach was a multi-mission framework designed for reuse. This was a good choice because key representatives from the three new missions would be involved in the inspections. The perspective-based approach was applied to produce inspection procedures tailored for the specific quality needs of the branch. The technical information to do so was largely drawn through a series of interviews with Branch personnel. The framework team used the procedures to review requirements. The inspections were useful for indicating that a restructuring of the requirements document was needed, which led to changes in the development project plan. The standard was sent out to other Branch personnel for review. Branch personnel were very positive. However, important changes were identified because the perspective of Attitude Control System (ACS) developers had not been adequately represented, a result of the specific personnel interviewed. The net result is that with some further work to incorporate the ACS perspective, and in synchrony with the roll out of independent Branch standards, the PBI approach will be implemented in the FSB. Also, the project intends to continue its collaboration with

  4. IMS software developments for the detection of chemical warfare agent

    Science.gov (United States)

    Klepel, ST.; Graefenhain, U.; Lippe, R.; Stach, J.; Starrock, V.

    1995-01-01

    Interference compounds like gasoline, diesel, burning wood or fuel, etc. are presented in common battlefield situations. These compounds can cause detectors to respond as a false positive or interfere with the detector's ability to respond to target compounds such as chemical warfare agents. To ensure proper response of the ion mobility spectrometer to chemical warfare agents, two special software packages were developed and incorporated into the Bruker RAID-1. The programs suppress interferring signals caused by car exhaust or smoke gases resulting from burning materials and correct the influence of variable sample gas humidity which is important for detection and quantification of blister agents like mustard gas or lewisite.

  5. Exploring Differences in Leadership Styles in Romanian Software Development Industry

    Directory of Open Access Journals (Sweden)

    Sofia DAVID

    2013-12-01

    Full Text Available Leadership style is considered an important factor that influences the firm perfomance. The aim of the present paper is to explore the correlations between the gender and management level of the managers, considered as independent variables, and the managers leadership styles as dependent variables. The study was based on an empirical research undertaken on a representative sample of 80 managers from different hierarchical levels in Romanian software development companies. The research methodology involved a design of two hypotheses, tested by means of Pearson chi-square. The research results emphasize a cultural specific context and some suggestions for future research are provided.

  6. The development of an interim generalized gate logic software simulator

    Science.gov (United States)

    Mcgough, J. G.; Nemeroff, S.

    1985-01-01

    A proof-of-concept computer program called IGGLOSS (Interim Generalized Gate Logic Software Simulator) was developed and is discussed. The simulator engine was designed to perform stochastic estimation of self test coverage (fault-detection latency times) of digital computers or systems. A major attribute of the IGGLOSS is its high-speed simulation: 9.5 x 1,000,000 gates/cpu sec for nonfaulted circuits and 4.4 x 1,000,000 gates/cpu sec for faulted circuits on a VAX 11/780 host computer.

  7. Development of RCM analysis software for Korean nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Young Ho; Choi, Kwang Hee; Jeong, Hyeong Jong [Korea Electric Power Research Institute, Taejon (Korea, Republic of)

    1998-12-31

    A software called KEPCO RCM workstation (KRCM) has been developed to optimize the maintenance strategies of Korean nuclear power plants. The program modules of the KRCM were designed in a manner that combines EPRI methodologies and KEPRI analysis technique. The KRCM is being applied to the three pilot system, chemical and volume control system, main steam system, and compressed air system of Yonggwang Units 1 and 2. In addition, the KRCM can be utilized as a tool to meet a part of the requirements of maintenance rule (MR) imposed by U.S. NRC. 3 refs., 4 figs. (Author)

  8. Integrating Usability Evaluations into the Software Development Process

    DEFF Research Database (Denmark)

    Lizano, Fulvio

    usability evaluations into modern software development processes, as the agile methods, by using an iterative scheme of small tests. The efficiency of the method relies on the fact that all the activities in the test process require much less time than at the lab, while still obtaining similar results...... of users’ emotions, something which will increase the developers’ empathy towards users. The efficiency of the method is grounded in the fact that it allows a remote interaction with users, which facilitates the emotional contagion process....

  9. Cross software for microprocessor program development at CERN

    CERN Document Server

    Von Eicken, H; Montuelle, J; Willers, I

    1981-01-01

    Programs for a variety of microprocessors (including Intel 8080; Motorola 6800, 6809 and 68000; and Texas Instruments 9900) can be prepared on different host computers (such as IBM 370, CDC 6000, and Nord 10) using portable programs developed at CERN. The range of cross software consists of: an assembler for each target microprocessor, a single linkage editor, a single object module librarian, and a variety of pre-loaders which convert object modules from CERN's format (CUFOM) into manufacturers' formats. The programs are written in BCPL and PASCAL, programming languages which are available on a wide range of computers.

  10. A Prototype for the Support of Integrated Software Process Development and Improvement

    Science.gov (United States)

    Porrawatpreyakorn, Nalinpat; Quirchmayr, Gerald; Chutimaskul, Wichian

    An efficient software development process is one of key success factors for quality software. Not only can the appropriate establishment but also the continuous improvement of integrated project management and of the software development process result in efficiency. This paper hence proposes a software process maintenance framework which consists of two core components: an integrated PMBOK-Scrum model describing how to establish a comprehensive set of project management and software engineering processes and a software development maturity model advocating software process improvement. Besides, a prototype tool to support the framework is introduced.

  11. The Web Interface Template System (WITS), a software developer`s tool

    Energy Technology Data Exchange (ETDEWEB)

    Lauer, L.J.; Lynam, M.; Muniz, T. [Sandia National Labs., Albuquerque, NM (United States). Financial Systems Dept.

    1995-11-01

    The Web Interface Template System (WITS) is a tool for software developers. WITS is a three-tiered, object-oriented system operating in a Client/Server environment. This tool can be used to create software applications that have a Web browser as the user interface and access a Sybase database. Development, modification, and implementation are greatly simplified because the developer can change and test definitions immediately, without writing or compiling any code. This document explains WITS functionality, the system structure and components of WITS, and how to obtain, install, and use the software system.

  12. Framework programmable platform for the advanced software development workstation. Integration mechanism design document

    Science.gov (United States)

    Mayer, Richard J.; Blinn, Thomas M.; Mayer, Paula S. D.; Reddy, Uday; Ackley, Keith; Futrell, Mike

    1991-01-01

    The Framework Programmable Software Development Platform (FPP) is a project aimed at combining effective tool and data integration mechanisms with a model of the software development process in an intelligent integrated software development environment. Guided by this model, this system development framework will take advantage of an integrated operating environment to automate effectively the management of the software development process so that costly mistakes during the development phase can be eliminated.

  13. Updates on Software development for a RICH detector

    Science.gov (United States)

    Voloshin, Andrew; Benmokhtar, Fatiha; Lendacky, Andrew; Goodwill, Justin

    2017-01-01

    The CLAS12 detector at Thomas Jefferson National Accelerator Facility (TJNAF) is undergoing an upgrade. One of the improvements is the addition of a Ring Imaging Cherenkov (RICH) detector to improve particle identification in the 3-8 GeV/c momentum range. Approximately 400 multi anode photomultiplier tubes (MAPMTs) are going to be used to detect Cherenkov Radiation in the single photoelectron spectra (SPS). Software development for slow control as well as online monitoring is under development. I will be presenting my work on the development of a java based programs for a monitor and explain its interaction with a Mysql database where the MAPMTs information is stored as well as the techniques used to visualize Cherenkov rings.

  14. KAERI software verification and validation guideline for developing safety-critical software in digital I and C system of NPP

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jang Yeol; Lee, Jang Soo; Eom, Heung Seop

    1997-07-01

    This technical report is to present V and V guideline development methodology for safety-critical software in NPP safety system. Therefore it is to present V and V guideline of planning phase for the NPP safety system in addition to critical safety items, for example, independence philosophy, software safety analysis concept, commercial off the shelf (COTS) software evaluation criteria, inter-relationships between other safety assurance organizations, including the concepts of existing industrial standard, IEEE Std-1012, IEEE Std-1059. This technical report includes scope of V and V guideline, guideline framework as part of acceptance criteria, V and V activities and task entrance as part of V and V activity and exit criteria, review and audit, testing and QA records of V and V material and configuration management, software verification and validation plan production etc., and safety-critical software V and V methodology. (author). 11 refs.

  15. Weld procedure development with OSLW - optimization software for laser welding

    Energy Technology Data Exchange (ETDEWEB)

    Fuerschbach, P.W.; Eisler, G.R. [Sandia National Labs., Albuquerque, NM (United States); Steele, R.J. [Naval Air Warfare Center, China Lake, CA (United States)

    1998-06-01

    Weld procedure development can require extensive experimentation, in-depth process knowledge, and is further complicated by the fact that there are often multiple sets of parameters that will meet the weld requirements. Choosing among these multiple weld procedures can be hastened with computer models that find parameters to meet selected weld dimensional requirements while simultaneously optimizing important figures of merit. Software is described that performs this task for CO{sub 2} laser beam welding. The models are based on dimensionless parameter correlations that are derived from solutions to the moving heat source equations. The use of both handbook and empirically verified thermophysical property values allows OSLW to be extended to many different materials. Graphics displays show the resulting solution on contour plots that can be used to further probe the model. The important figures of merit for laser beam welding are energy transfer efficiency and melting efficiency. The application enables the user to input desired weld shape dimensions, select the material to be welded, and to constrain the search problem to meet the application requirements. Successful testing of the software at a laser welding fabricator has validated this tool for weld procedure development.

  16. Development of an engine system simulation software package - ESIM

    Energy Technology Data Exchange (ETDEWEB)

    Erlandsson, Olof

    2000-10-01

    A software package, ESIM is developed for simulating internal combustion engine systems, including models for engine, manifolds, turbocharger, charge-air cooler (inter cooler) and inlet air heater. This study focus on the thermodynamic treatment and methods used in the models. It also includes some examples of system simulations made with these models for validation purposes. The engine model can be classified as a zero-dimensional, single zone model. It includes calculation of the valve flow process, models for heat release and models for in-cylinder, exhaust port and manifold heat transfer. Models are developed for handling turbocharger performance and charge air cooler characteristics. The main purpose of the project related to this work is to use the ESIM software to study heat balance and performance of homogeneous charge compression ignition (HCCI) engine systems. A short description of the HCCI engine is therefore included, pointing out the difficulties, or challenges regarding the HCCI engine, from a system perspective. However, the relations given here, and the code itself, is quite general, making it possible to use these models to simulate spark ignited, as well as direct injected engines.

  17. Radiological equipment analyzed by specific developed phantoms and software

    Energy Technology Data Exchange (ETDEWEB)

    Soto, M.; Campayo, J. M. [Logistica y Acondicionamientos Industriales SAU, Sorolla Center, Local 10, Av. de las Cortes Valencianas No. 58, 46015 Valencia (Spain); Mayo, P. [TITANIA Servicios Tecnologicos SL, Sorolla Center, Local 10, Av. de las Cortes Valencianas No. 58, 46015 Valencia (Spain); Verdu, G.; Rodenas, F., E-mail: m.soto@lainsa.co [ISIRYIM Universidad Politecnica de Valencia, Camino de Vera s/n, Valencia (Spain)

    2010-10-15

    The use of radiographic phantoms specifically designed to evaluate the operation of the radiographic equipment lets the study of the image quality obtained by this equipment in an objective way. In digital radiographic equipment, the analysis of the image quality can be computerized because the acquisition of the image is possible in different technologies that are, computerized radiography or phosphor plate and direct radiography or detector. In case of film-screen equipment s this analysis could be applied digitalising the image in a professional scanner. In this work we have shown an application to assess automatically the constancy quality image in the image chain of the radiographic equipment s. This application is integrated by designed radiographic phantoms which are adapted to conventional, dental equipment s and specific developed software for the automatic evaluation of the phantom image quality. The software is based on digital image processing techniques that let the automatic detection of the different phantom tests by edge detector, morphological operators, threshold histogram techniques... etc. The utility developed is enough sensitive to the radiographic equipment of operating conditions of voltage (kV) and charge (m As). It is a friendly user programme connected with a data base of the hospital or clinic where it has been used. After the phantom image processing the user can obtain an inform with a resume of the imaging system state with accepting and constancy results. (Author)

  18. Software Development Of XML Parser Based On Algebraic Tools

    Science.gov (United States)

    Georgiev, Bozhidar; Georgieva, Adriana

    2011-12-01

    In this paper, is presented one software development and implementation of an algebraic method for XML data processing, which accelerates XML parsing process. Therefore, the proposed in this article nontraditional approach for fast XML navigation with algebraic tools contributes to advanced efforts in the making of an easier user-friendly API for XML transformations. Here the proposed software for XML documents processing (parser) is easy to use and can manage files with strictly defined data structure. The purpose of the presented algorithm is to offer a new approach for search and restructuring hierarchical XML data. This approach permits fast XML documents processing, using algebraic model developed in details in previous works of the same authors. So proposed parsing mechanism is easy accessible to the web consumer who is able to control XML file processing, to search different elements (tags) in it, to delete and to add a new XML content as well. The presented various tests show higher rapidity and low consumption of resources in comparison with some existing commercial parsers.

  19. A Role-Playing Game for a Software Engineering Lab: Developing a Product Line

    Science.gov (United States)

    Zuppiroli, Sara; Ciancarini, Paolo; Gabbrielli, Maurizio

    2012-01-01

    Software product line development refers to software engineering practices and techniques for creating families of similar software systems from a basic set of reusable components, called shared assets. Teaching how to deal with software product lines in a university lab course is a challenging task, because there are several practical issues that…

  20. 78 FR 47012 - Developing Software Life Cycle Processes Used in Safety Systems of Nuclear Power Plants

    Science.gov (United States)

    2013-08-02

    ... COMMISSION Developing Software Life Cycle Processes Used in Safety Systems of Nuclear Power Plants AGENCY... Software Life Cycle Processes for Digital Computer Software used in Safety Systems of Nuclear Power Plants... design quality in software used in safety systems in nuclear power plants. ADDRESSES: Please refer to...

  1. Evolutional development of controlling software for agricultural vehicles and robots

    DEFF Research Database (Denmark)

    Nakanishi, Tsuneo; Jæger-Hansen, Claes Lund; Griepentrog, Hans-Werner

    Agricultural vehicles and robots expand their controlling software in size and complexity for their increasing functions. Due to repeated, ad hoc addition and modification, software gets structurally corrupted and becomes low performing, resource consuming and unreliable. This paper presents...

  2. Automating the management of software projects in a developing it ...

    African Journals Online (AJOL)

    Software project management is the control of the transformation of users' requirements and resources into a successful software result (product). This work automates the management of software projects in an emerging IT economy like Nigeria. It also explores the simulation of management practices such as configuration ...

  3. Automating the management of software projects in a developing IT ...

    African Journals Online (AJOL)

    Software project management is the control of the transformation of users' requirements and resources into a successful software result (product). This work automates the management of software projects in an emerging IT economy like Nigeria. It also explores the simulation of management practices such as configuration ...

  4. Software reuse in agile development organizations: a conceptual management tool

    NARCIS (Netherlands)

    Spoelstra, Wouter; Iacob, Maria Eugenia; van Sinderen, Marten J.; Chu, W.C.; Wong, E.C.; Palakal, M.J.; Hung, C.-C.

    2011-01-01

    The reuse of knowledge is considered a major factor for increasing productivity and quality. In the software industry knowledge is embodied in software assets such as code components, functional designs and test cases. This kind of knowledge reuse is also referred to as software reuse. Although the

  5. Distributed Sensor Network Software Development Testing through Simulation

    Energy Technology Data Exchange (ETDEWEB)

    Brennan, Sean M. [Univ. of New Mexico, Albuquerque, NM (United States)

    2003-12-01

    The distributed sensor network (DSN) presents a novel and highly complex computing platform with dif culties and opportunities that are just beginning to be explored. The potential of sensor networks extends from monitoring for threat reduction, to conducting instant and remote inventories, to ecological surveys. Developing and testing for robust and scalable applications is currently practiced almost exclusively in hardware. The Distributed Sensors Simulator (DSS) is an infrastructure that allows the user to debug and test software for DSNs independent of hardware constraints. The exibility of DSS allows developers and researchers to investigate topological, phenomenological, networking, robustness and scaling issues, to explore arbitrary algorithms for distributed sensors, and to defeat those algorithms through simulated failure. The user speci es the topology, the environment, the application, and any number of arbitrary failures; DSS provides the virtual environmental embedding.

  6. The Pandora software development kit for pattern recognition

    Energy Technology Data Exchange (ETDEWEB)

    Marshall, J.S.; Thomson, M.A. [University of Cambridge, Cavendish Laboratory, Cambridge (United Kingdom)

    2015-09-15

    The development of automated solutions to pattern recognition problems is important in many areas of scientific research and human endeavour. This paper describes the implementation of the Pandora software development kit, which aids the process of designing, implementing and running pattern recognition algorithms. The Pandora Application Programming Interfaces ensure simple specification of the building-blocks defining a pattern recognition problem. The logic required to solve the problem is implemented in algorithms. The algorithms request operations to create or modify data structures and the operations are performed by the Pandora framework. This design promotes an approach using many decoupled algorithms, each addressing specific topologies. Details of algorithms addressing two pattern recognition problems in High Energy Physics are presented: reconstruction of events at a high-energy e{sup +}e{sup -} linear collider and reconstruction of cosmic ray or neutrino events in a liquid argon time projection chamber. (orig.)

  7. The Pandora software development kit for pattern recognition

    Science.gov (United States)

    Marshall, J. S.; Thomson, M. A.

    2015-09-01

    The development of automated solutions to pattern recognition problems is important in many areas of scientific research and human endeavour. This paper describes the implementation of the Pandora software development kit, which aids the process of designing, implementing and running pattern recognition algorithms. The Pandora Application Programming Interfaces ensure simple specification of the building-blocks defining a pattern recognition problem. The logic required to solve the problem is implemented in algorithms. The algorithms request operations to create or modify data structures and the operations are performed by the Pandora framework. This design promotes an approach using many decoupled algorithms, each addressing specific topologies. Details of algorithms addressing two pattern recognition problems in High Energy Physics are presented: reconstruction of events at a high-energy e+e- linear collider and reconstruction of cosmic ray or neutrino events in a liquid argon time projection chamber.

  8. A Case Study of Coordination in Distributed Agile Software Development

    Science.gov (United States)

    Hole, Steinar; Moe, Nils Brede

    Global Software Development (GSD) has gained significant popularity as an emerging paradigm. Companies also show interest in applying agile approaches in distributed development to combine the advantages of both approaches. However, in their most radical forms, agile and GSD can be placed in each end of a plan-based/agile spectrum because of how work is coordinated. We describe how three GSD projects applying agile methods coordinate their work. We found that trust is needed to reduce the need of standardization and direct supervision when coordinating work in a GSD project, and that electronic chatting supports mutual adjustment. Further, co-location and modularization mitigates communication problems, enables agility in at least part of a GSD project, and renders the implementation of Scrum of Scrums possible.

  9. Software Delivery Risk Management: Application of Bayesian Networks in Agile Software Development

    Directory of Open Access Journals (Sweden)

    Ancveire Ieva

    2015-12-01

    Full Text Available The information technology industry cannot be imagined without large- or small-scale projects. They are implemented to develop systems enabling key business processes and improving performance and enterprise resource management. However, projects often experience various difficulties during their execution. These problems are usually related to the three objectives of the project – costs, quality and deadline. A way these challenges can be solved is project risk management. However, not always the main problems and their influencing factors can be easily identified. Usually there is a need for a more profound analysis of the problem situation. In this paper, we propose the use of a Bayesian Network concept for quantitative risk management in agile projects. The Bayesian Network is explored using a case study focusing on a project that faces difficulties during the software delivery process. We explain why an agile risk analysis is needed and assess the potential risk factors, which may occur during the project. Thereafter, we design the Bayesian Network to capture the actual problem situation and make suggestions how to improve the delivery process based on the measures to be taken to reduce the occurrence of project risks.

  10. KAERI software safety guideline for developing safety-critical software in digital instrumentation and control system of nuclear power plant

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jang Soo; Kim, Jang Yeol; Eum, Heung Seop

    1997-07-01

    Recently, the safety planning for safety-critical software systems is being recognized as the most important phase in the software life cycle, and being developed new regulatory positions and standards by the regulatory and the standardization organization. The requirements for software important to safety of nuclear reactor are described in such positions and standards. Most of them are describing mandatory requirements, what shall be done, for the safety-critical software. The developers of such a software. However, there have been a lot of controversial factors on whether the work practices satisfy the regulatory requirements, and to justify the safety of such a system developed by the work practices, between the licenser and the licensee. We believe it is caused by the reason that there is a gap between the mandatory requirements (What) and the work practices (How). We have developed a guidance to fill such gap, which can be useful for both licenser and licensee to conduct a justification of the safety in the planning phase of developing the software for nuclear reactor protection systems. (author). 67 refs., 13 tabs., 2 figs.

  11. The IceCube Data Acquisition Software: Lessons Learned during Distributed, Collaborative, Multi-Disciplined Software Development.

    Energy Technology Data Exchange (ETDEWEB)

    Beattie, Keith S; Beattie, Keith; Day Ph.D., Christopher; Glowacki, Dave; Hanson Ph.D., Kael; Jacobsen Ph.D., John; McParland, Charles; Patton Ph.D., Simon

    2007-09-21

    In this experiential paper we report on lessons learned during the development ofthe data acquisition software for the IceCube project - specifically, how to effectively address the unique challenges presented by a distributed, collaborative, multi-institutional, multi-disciplined project such as this. While development progress in software projects is often described solely in terms of technical issues, our experience indicates that non- and quasi-technical interactions play a substantial role in the effectiveness of large software development efforts. These include: selection and management of multiple software development methodologies, the effective useof various collaborative communication tools, project management structure and roles, and the impact and apparent importance of these elements when viewed through the differing perspectives of hardware, software, scientific and project office roles. Even in areas clearly technical in nature, success is still influenced by non-technical issues that can escape close attention. In particular we describe our experiences on software requirements specification, development methodologies and communication tools. We make observations on what tools and techniques have and have not been effective in this geographically disperse (including the South Pole) collaboration and offer suggestions on how similarly structured future projects may build upon our experiences.

  12. Lessons learned from development and quality assurance of software systems at the Halden Project

    Energy Technology Data Exchange (ETDEWEB)

    Bjorlo, T.J.; Berg, O.; Pehrsen, M.; Dahll, G.; Sivertsen, T. [OECD Halden Reactor Project (Norway)

    1996-03-01

    The OECD Halden Reactor Project has developed a number of software systems within the research programmes. These programmes have comprised a wide range of topics, like studies of software for safety-critical applications, development of different operator support systems, and software systems for building and implementing graphical user interfaces. The systems have ranged from simple prototypes to installations in process plants. In the development of these software systems, Halden has gained much experience in quality assurance of different types of software. This paper summarises the accumulated experience at the Halden Project in quality assurance of software systems. The different software systems being developed at the Halden Project may be grouped into three categories. These are plant-specific software systems (one-of-a-kind deliveries), generic software products, and safety-critical software systems. This classification has been found convenient as the categories have different requirements to the quality assurance process. In addition, the experience from use of software development tools and proprietary software systems at Halden, is addressed. The paper also focuses on the experience gained from the complete software life cycle, starting with the software planning phase and ending with software operation and maintenance.

  13. Software-Based Challenges of Developing the Future Distribution Grid

    Energy Technology Data Exchange (ETDEWEB)

    Stewart, Emma; Kiliccote, Sila; McParland, Charles

    2014-06-01

    The software that the utility industry currently uses may be insufficient to analyze the distribution grid as it rapidly modernizes to include active resources such as distributed generation, switch and voltage control, automation, and increasingly complex loads. Although planners and operators have traditionally viewed the distribution grid as a passive load, utilities and consultants increasingly need enhanced analysis that incorporates active distribution grid loads in order to ensure grid reliability. Numerous commercial and open-source tools are available for analyzing distribution grid systems. These tools vary in complexity from providing basic load-flow and capacity analysis under steady-state conditions to time-series analysis and even geographical representations of dynamic and transient events. The need for each type of analysis is not well understood in the industry, nor are the reasons that distribution analysis requires different techniques and tools both from those now available and from those used for transmission analysis. In addition, there is limited understanding of basic capability of the tools and how they should be practically applied to the evolving distribution system. The study reviews the features and state of the art capability of current tools, including usability and visualization, basic analysis functionality, advanced analysis including inverters, and renewable generation and load modeling. We also discuss the need for each type of distribution grid system analysis. In addition to reviewing basic functionality current models, we discuss dynamics and transient simulation in detail and draw conclusions about existing software?s ability to address the needs of the future distribution grid as well as the barriers to modernization of the distribution grid that are posed by the current state of software and model development. Among our conclusions are that accuracy, data transfer, and data processing abilities are key to future

  14. Soft Skills and Software Development: A Reflection from the Software Industry

    OpenAIRE

    Ahmed, Faheem; Capretz, Luiz Fernando; Bouktif, Salah; Campbell, Piers

    2015-01-01

    We review the literature relating to soft skills and the software engineering and information systems domain before describing a study based on 650 job advertisements posted on well-known recruitment sites from a range of geographical locations including, North America, Europe, Asia and Australia. The study makes use of nine defined soft skills to assess the level of demand for each of these skills related to individual job roles within the software industry. This work reports some of the vit...

  15. Software for security event management: Development and utilization

    Directory of Open Access Journals (Sweden)

    Aleksandr V. Kuznetcov

    2017-11-01

    Full Text Available We address the challenge to the information security coming from the lack of algorithmic machinery for managing the security events. We start with a mathematical formulation of the problem for a tabular processor by introducing an appropriate target function. Details of corresponding algorithm can be found by following the provided links. We describe our original software module that implements the algorithm for determining the registered security events. The module is based on the tabular processor certified by the Russian Federal Service for Technical and Export Control. We present a control sample for testing the developed module. The sample has the dimension 30x20 and contains 14 choices for threshold values of security events number. The results of the tests comply with the specified boundary conditions and demonstrate a nonlinear dependence of the objective function on the number of registered security events, as well as a nonlinear dependence of the percentage of the detected security event on the total initial number of security events to be registered at the event source. The performance of the module specifically, the central processing unit usage is found acceptable (not exceeding 33%, which allows one to use the software for typical automated workplaces equipped with appropriate tabular processors. Our approach is universal with respect to the application areas.

  16. Current practice in software development for computational neuroscience and how to improve it.

    Science.gov (United States)

    Gewaltig, Marc-Oliver; Cannon, Robert

    2014-01-01

    Almost all research work in computational neuroscience involves software. As researchers try to understand ever more complex systems, there is a continual need for software with new capabilities. Because of the wide range of questions being investigated, new software is often developed rapidly by individuals or small groups. In these cases, it can be hard to demonstrate that the software gives the right results. Software developers are often open about the code they produce and willing to share it, but there is little appreciation among potential users of the great diversity of software development practices and end results, and how this affects the suitability of software tools for use in research projects. To help clarify these issues, we have reviewed a range of software tools and asked how the culture and practice of software development affects their validity and trustworthiness. We identified four key questions that can be used to categorize software projects and correlate them with the type of product that results. The first question addresses what is being produced. The other three concern why, how, and by whom the work is done. The answers to these questions show strong correlations with the nature of the software being produced, and its suitability for particular purposes. Based on our findings, we suggest ways in which current software development practice in computational neuroscience can be improved and propose checklists to help developers, reviewers, and scientists to assess the quality of software and whether particular pieces of software are ready for use in research.

  17. Current practice in software development for computational neuroscience and how to improve it.

    Directory of Open Access Journals (Sweden)

    Marc-Oliver Gewaltig

    2014-01-01

    Full Text Available Almost all research work in computational neuroscience involves software. As researchers try to understand ever more complex systems, there is a continual need for software with new capabilities. Because of the wide range of questions being investigated, new software is often developed rapidly by individuals or small groups. In these cases, it can be hard to demonstrate that the software gives the right results. Software developers are often open about the code they produce and willing to share it, but there is little appreciation among potential users of the great diversity of software development practices and end results, and how this affects the suitability of software tools for use in research projects. To help clarify these issues, we have reviewed a range of software tools and asked how the culture and practice of software development affects their validity and trustworthiness. We identified four key questions that can be used to categorize software projects and correlate them with the type of product that results. The first question addresses what is being produced. The other three concern why, how, and by whom the work is done. The answers to these questions show strong correlations with the nature of the software being produced, and its suitability for particular purposes. Based on our findings, we suggest ways in which current software development practice in computational neuroscience can be improved and propose checklists to help developers, reviewers, and scientists to assess the quality of software and whether particular pieces of software are ready for use in research.

  18. IT Software Development and IT Operations Strategic Alignment: An Agile DevOps Model

    Science.gov (United States)

    Hart, Michael

    2017-01-01

    Information Technology (IT) departments that include development and operations are essential to develop software that meet customer needs. DevOps is a term originally constructed from software development and IT operations. DevOps includes the collaboration of all stakeholders such as software engineers and systems administrators involved in the…

  19. ON APPROACHES ON THE SOFTWARE DEVELOPMENT FOR THE MEDICAL EDUCATION AREA

    Directory of Open Access Journals (Sweden)

    A. V. Semenets

    2015-05-01

    Importance of application of the version control system to the software development process optimization is shown. Capabilities of the Google Apps For Education cloud platform usage in the software development process are also presented. The final recommendations to the software development process organization in the medical university are formed.

  20. Object Oriented Modeling : A method for combining model and software development

    NARCIS (Netherlands)

    Van Lelyveld, W.

    2010-01-01

    When requirements for a new model cannot be met by available modeling software, new software can be developed for a specific model. Methods for the development of both model and software exist, but a method for combined development has not been found. A compatible way of thinking is required to

  1. Built To Last: Using Iterative Development Models for Sustainable Scientific Software Development

    Science.gov (United States)

    Jasiak, M. E.; Truslove, I.; Savoie, M.

    2013-12-01

    In scientific research, software development exists fundamentally for the results they create. The core research must take focus. It seems natural to researchers, driven by grant deadlines, that every dollar invested in software development should be used to push the boundaries of problem solving. This system of values is frequently misaligned with those of the software being created in a sustainable fashion; short-term optimizations create longer-term sustainability issues. The National Snow and Ice Data Center (NSIDC) has taken bold cultural steps in using agile and lean development and management methodologies to help its researchers meet critical deadlines, while building in the necessary support structure for the code to live far beyond its original milestones. Agile and lean software development and methodologies including Scrum, Kanban, Continuous Delivery and Test-Driven Development have seen widespread adoption within NSIDC. This focus on development methods is combined with an emphasis on explaining to researchers why these methods produce more desirable results for everyone, as well as promoting developers interacting with researchers. This presentation will describe NSIDC's current scientific software development model, how this addresses the short-term versus sustainability dichotomy, the lessons learned and successes realized by transitioning to this agile and lean-influenced model, and the current challenges faced by the organization.

  2. Object-oriented approach to software development for LHC experiments

    CERN Document Server

    O'Neale, S W; Dodgson, M; CERN. Geneva. Detector Research and Development Committee

    1994-01-01

    A proposal to study the viability of the Object Oriented (OO) approach for developing the code for LHC experiments. The authors will learn the key issues of this approach: OO analysis and design. Several methodologies will be studied to select the most appropiate for the High Energy Physics case. Some Computer Aided Software Engineering tools and implementation languages will be evaluated. These studies will be carried out with various well-defined prototypes, some of which have been defined in a preceding study and some of which will be defined in the course of this R&D project. It is also proposed to study how the OO approach enhances a different, and hopefully better, project management. Management tools will be tried and professional training will be organized.

  3. PROTEINCHALLENGE: Crowd sourcing in proteomics analysis and software development

    DEFF Research Database (Denmark)

    Martin, Sarah F.; Falkenberg, Heiner; Dyrlund, Thomas Franck

    2013-01-01

    , including arguments for community-wide open source software development and “big data” compatible solutions for the future. For the meantime, we have laid out ten top tips for data processing. With these at hand, a first large-scale proteomics analysis hopefully becomes less daunting to navigate.......However there is clearly a real need for robust tools, standard operating procedures and general acceptance of best practises. Thus we submit to the proteomics community a call for a community-wide open set of proteomics analysis challenges—PROTEINCHALLENGE—that directly target and compare data analysis workflows......In large-scale proteomics studies there is a temptation, after months of experimental work, to plug resulting data into a convenient—if poorly implemented—set of tools, which may neither do the data justice nor help answer the scientific question. In this paper we have captured key concerns...

  4. Knowledge-based requirements analysis for automating software development

    Science.gov (United States)

    Markosian, Lawrence Z.

    1988-01-01

    We present a new software development paradigm that automates the derivation of implementations from requirements. In this paradigm, informally-stated requirements are expressed in a domain-specific requirements specification language. This language is machine-understable and requirements expressed in it are captured in a knowledge base. Once the requirements are captured, more detailed specifications and eventually implementations are derived by the system using transformational synthesis. A key characteristic of the process is that the required human intervention is in the form of providing problem- and domain-specific engineering knowledge, not in writing detailed implementations. We describe a prototype system that applies the paradigm in the realm of communication engineering: the prototype automatically generates implementations of buffers following analysis of the requirements on each buffer.

  5. Development of Self-made LSM Software using in Neuroscience

    Science.gov (United States)

    Doronin, Maxim; Makovkin, Sergey; Popov, Alexander

    2017-07-01

    One of the main and modern visualization method in neuroscience is two-photon microscopy. However, scientists need to upgrade their microscopy system so regular because they are interested to get more specific data. Self-developed microscopy system allows to modify the construction of microscope in not-complicated manner depending on specialized experimental models and scientific tasks. Earlier we reported about building of self-made laser scanning microscope (LSM) using in neuroscience both for in vivo and in vitro experiments. Here we will report how to create software AMAScan for LSM controlling in MATLAB. The work was performed with financial support of the government represented by the Ministry of Education and Science of the Russian Federation, the unique identifier of the project is RFMEFI58115X0016, the agreement on granting a subsidy №14.581.21.0016 dated 14.10.2015.

  6. Object Oriented Approach to Software Development for LHC Experiments

    CERN Multimedia

    Tummers, B J; Day, C; Innocente, V; Mount, R; Visser, E; Burnett, T H; Balke, C

    2002-01-01

    % RD41 \\\\ \\\\ We propose to study the viability of the Object Oriented~(OO) approach for developing the code for LHC experiments. The authors of this proposal will learn the key issues of this approach:~~OO analysis and design. Several methodologies will be studied to select the most appropriate for the High Energy Physics case. Some Computer Aided Software Engineering tools and implementation languages will be evaluated. These studies will be carried out with various well-defined prototypes, some of which have been defined in a preceding study and some of which will be defined in the course of this R\\&D project. We propose to also study in this project how the OO approach enhances a different, and hopefully better, project management. Management tools will be tried and professional training will be organized.

  7. An evolutionary morphological approach for software development cost estimation.

    Science.gov (United States)

    Araújo, Ricardo de A; Oliveira, Adriano L I; Soares, Sergio; Meira, Silvio

    2012-08-01

    In this work we present an evolutionary morphological approach to solve the software development cost estimation (SDCE) problem. The proposed approach consists of a hybrid artificial neuron based on framework of mathematical morphology (MM) with algebraic foundations in the complete lattice theory (CLT), referred to as dilation-erosion perceptron (DEP). Also, we present an evolutionary learning process, called DEP(MGA), using a modified genetic algorithm (MGA) to design the DEP model, because a drawback arises from the gradient estimation of morphological operators in the classical learning process of the DEP, since they are not differentiable in the usual way. Furthermore, an experimental analysis is conducted with the proposed model using five complex SDCE problems and three well-known performance metrics, demonstrating good performance of the DEP model to solve SDCE problems. Copyright © 2012 Elsevier Ltd. All rights reserved.

  8. Analysis of Software Development Methodologies to Build Safety Software Applications for the SATEX-II: A Mexican Experimental Satellite

    Science.gov (United States)

    Aguilar Cisneros, Jorge; Vargas Martinez, Hector; Pedroza Melendez, Alejandro; Alonso Arevalo, Miguel

    2013-09-01

    Mexico is a country where the experience to build software for satellite applications is beginning. This is a delicate situation because in the near future we will need to develop software for the SATEX-II (Mexican Experimental Satellite). SATEX- II is a SOMECyTA's project (the Mexican Society of Aerospace Science and Technology). We have experienced applying software development methodologies, like TSP (Team Software Process) and SCRUM in other areas. Then, we analyzed these methodologies and we concluded: these can be applied to develop software for the SATEX-II, also, we supported these methodologies with SSP-05-0 Standard in particular with ESA PSS-05-11. Our analysis was focusing on main characteristics of each methodology and how these methodologies could be used with the ESA PSS 05-0 Standards. Our outcomes, in general, may be used by teams who need to build small satellites, but, in particular, these are going to be used when we will build the on board software applications for the SATEX-II.

  9. Software development infrastructure for the HYBRID modeling and simulation project

    Energy Technology Data Exchange (ETDEWEB)

    Epiney, Aaron S. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Kinoshita, Robert A. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Kim, Jong Suk [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Greenwood, M. Scott [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-09-01

    One of the goals of the HYBRID modeling and simulation project is to assess the economic viability of hybrid systems in a market that contains renewable energy sources like wind. The idea is that it is possible for the nuclear plant to sell non-electric energy cushions, which absorb (at least partially) the volatility introduced by the renewable energy sources. This system is currently modeled in the Modelica programming language. To assess the economics of the system, an optimization procedure is trying to find the minimal cost of electricity production. The RAVEN code is used as a driver for the whole problem. It is assumed that at this stage, the HYBRID modeling and simulation framework can be classified as non-safety “research and development” software. The associated quality level is Quality Level 3 software. This imposes low requirements on quality control, testing and documentation. The quality level could change as the application development continues.Despite the low quality requirement level, a workflow for the HYBRID developers has been defined that include a coding standard and some documentation and testing requirements. The repository performs automated unit testing of contributed models. The automated testing is achieved via an open-source python script called BuildingsP from Lawrence Berkeley National Lab. BuildingsPy runs Modelica simulation tests using Dymola in an automated manner and generates and runs unit tests from Modelica scripts written by developers. In order to assure effective communication between the different national laboratories a biweekly videoconference has been set-up, where developers can report their progress and issues. In addition, periodic face-face meetings are organized intended to discuss high-level strategy decisions with management. A second means of communication is the developer email list. This is a list to which everybody can send emails that will be received by the collective of the developers and managers

  10. Buy, don`t build -- What does that mean for a software developer?

    Energy Technology Data Exchange (ETDEWEB)

    Little, T.; Rahi, M.A.; Sinclair, C. [Western Atlas Software, Houston, TX (United States)

    1995-06-01

    The buzz phrase of the 1990`s for the petroleum software industry has become ``buy, don`t build.`` For an end user in an oil company, this generally means acquiring application software rather than developing it internally. The concept of buy, don`t build can also apply for a software developer. Purchasing software toolkit components can expedite the development of an application as well as reduce future support requirements.

  11. Meta-tools for software development and knowledge acquisition

    Science.gov (United States)

    Eriksson, Henrik; Musen, Mark A.

    1992-01-01

    The effectiveness of tools that provide support for software development is highly dependent on the match between the tools and their task. Knowledge-acquisition (KA) tools constitute a class of development tools targeted at knowledge-based systems. Generally, KA tools that are custom-tailored for particular application domains are more effective than are general KA tools that cover a large class of domains. The high cost of custom-tailoring KA tools manually has encouraged researchers to develop meta-tools for KA tools. Current research issues in meta-tools for knowledge acquisition are the specification styles, or meta-views, for target KA tools used, and the relationships between the specification entered in the meta-tool and other specifications for the target program under development. We examine different types of meta-views and meta-tools. Our current project is to provide meta-tools that produce KA tools from multiple specification sources--for instance, from a task analysis of the target application.

  12. Mutation Analysis Approach to Develop Reliable Object-Oriented Software

    Directory of Open Access Journals (Sweden)

    Monalisa Sarma

    2014-01-01

    Full Text Available In general, modern programs are large and complex and it is essential that they should be highly reliable in applications. In order to develop highly reliable software, Java programming language developer provides a rich set of exceptions and exception handling mechanisms. Exception handling mechanisms are intended to help developers build robust programs. Given a program with exception handling constructs, for an effective testing, we are to detect whether all possible exceptions are raised and caught or not. However, complex exception handling constructs make it tedious to trace which exceptions are handled and where and which exceptions are passed on. In this paper, we address this problem and propose a mutation analysis approach to develop reliable object-oriented programs. We have applied a number of mutation operators to create a large set of mutant programs with different type of faults. We then generate test cases and test data to uncover exception related faults. The test suite so obtained is applied to the mutant programs measuring the mutation score and hence verifying whether mutant programs are effective or not. We have tested our approach with a number of case studies to substantiate the efficacy of the proposed mutation analysis technique.

  13. Ed Tech Developer's Guide: A Primer for Software Developers, Startups, and Entrepreneurs

    Science.gov (United States)

    Bienkowski, Marie; Gerard, Sarah Nixon; Rubin, Shawn; Sanford, Cathy; Borrelli-Murray, Dana; Driscoll, Tom; Arora, Jessie; Hruska, Mike; Beck, Katie; Murray, Thomas; Hoekstra, Jason; Gannes, Stuart; Metz, Edward; Midgley, Steve; Castilla, Stephanie; Tomassini, Jason; Madda, Mary Jo; Chase, Zac; Martin, Erik; Noel, Marcus; Styles, Kathleen

    2015-01-01

    Opportunities abound for software designers and developers to create impactful tools for teachers, school leaders, students, and their families. This guide for developers, startups, and entrepreneurs addresses key questions about the education ecosystem and highlights critical needs and opportunities to develop digital tools and apps for learning.…

  14. Toward an Agile Approach to Managing the Effect of Requirements on Software Architecture during Global Software Development

    Directory of Open Access Journals (Sweden)

    Abdulaziz Alsahli

    2016-01-01

    Full Text Available Requirement change management (RCM is a critical activity during software development because poor RCM results in occurrence of defects, thereby resulting in software failure. To achieve RCM, efficient impact analysis is mandatory. A common repository is a good approach to maintain changed requirements, reusing and reducing effort. Thus, a better approach is needed to tailor knowledge for better change management of requirements and architecture during global software development (GSD.The objective of this research is to introduce an innovative approach for handling requirements and architecture changes simultaneously during global software development. The approach makes use of Case-Based Reasoning (CBR and agile practices. Agile practices make our approach iterative, whereas CBR stores requirements and makes them reusable. Twin Peaks is our base model, meaning that requirements and architecture are handled simultaneously. For this research, grounded theory has been applied; similarly, interviews from domain experts were conducted. Interview and literature transcripts formed the basis of data collection in grounded theory. Physical saturation of theory has been achieved through a published case study and developed tool. Expert reviews and statistical analysis have been used for evaluation. The proposed approach resulted in effective change management of requirements and architecture simultaneously during global software development.

  15. Knowledge management in small software development organisations: A South African perspective

    Directory of Open Access Journals (Sweden)

    Mzwandile M. Shongwe

    2017-01-01

    Full Text Available Background: Software organisations have been experiencing software development failures since the beginning of software development. Globally, latest Standish Group CHAOS reports indicate that only 29% of projects are successful. In South Africa (SA, the ITWeb report (2013 indicates that only 11% of all projects are successful. Intervention strategies such as software process improvement (SPI frameworks and new software development methodologies such as agile methods have been introduced to address this issue. These intervention strategies do not seem to be effective because software development projects continue to fail. To address this issue, software organisations are turning to knowledge management (KM. This is because software development is a knowledge-intensive task.Objectives: The study aimed to investigate KM practices in small, medium and micro (SMMEs software development organisations in SA and to determine if KM has benefited the organisations.Method: Fifteen software development project managers from 15 software development SMMEs were interviewed. Content analysis was used to analyse the data.Results: The study found six KM practices in the organisations: knowledge acquisition, creation, storage, sharing, organisation and application. The study found that KM has benefited organisations by making them effective, efficient and productive.Conclusions: The study concluded that software development organisation have adopted KM, although informally, and that KM practices have improved organisational routines and processes.

  16. Conceptions of Software Development by Project Managers: A Study of Managing the Outsourced Development of Software Applications for United States Federal Government Agencies

    Science.gov (United States)

    Eisen, Daniel

    2013-01-01

    This study explores how project managers, working for private federal IT contractors, experience and understand managing the development of software applications for U.S. federal government agencies. Very little is known about how they manage their projects in this challenging environment. Software development is a complex task and only grows in…

  17. Development of Czech Software for Managing of Cattle Breeding

    Directory of Open Access Journals (Sweden)

    Iveta Novotná

    2016-10-01

    Full Text Available Cattle breeding, a traditional sector of agricultural production, is currently recording a very intensive development caused by the effort of farmers to maximize production and especially their profit. Rapid implementation of new technologies, that help to achieve this goal, cannot be reliably carried out without the use of modern computer and transmission technology controlled by a quality control program. Absence of a similar system on our market led the company Agrosoft to develop a system sorting according to register designed for all types of farming, regardless of the amount of housed animals. The product was created in a Czech company, respects traditional local customs and his undisputable contribution is the subsequent connection to superior organizations operating in the Czech Republic. Complexity of this newly developed product is brought almost to perfection and allows producers to work with the files of needed information fundamentally anywhere and anytime. The new software improves and accelerates the managing work in breeding companies and consequently helps to improve the quality of final products to increase their profitability.

  18. Launch Control System Software Development System Automation Testing

    Science.gov (United States)

    Hwang, Andrew

    2017-01-01

    The Spaceport Command and Control System (SCCS) is the National Aeronautics and Space Administration's (NASA) launch control system for the Orion capsule and Space Launch System, the next generation manned rocket currently in development. This system requires high quality testing that will measure and test the capabilities of the system. For the past two years, the Exploration and Operations Division at Kennedy Space Center (KSC) has assigned a group including interns and full-time engineers to develop automated tests to save the project time and money. The team worked on automating the testing process for the SCCS GUI that would use streamed simulated data from the testing servers to produce data, plots, statuses, etc. to the GUI. The software used to develop automated tests included an automated testing framework and an automation library. The automated testing framework has a tabular-style syntax, which means the functionality of a line of code must have the appropriate number of tabs for the line to function as intended. The header section contains either paths to custom resources or the names of libraries being used. The automation library contains functionality to automate anything that appears on a desired screen with the use of image recognition software to detect and control GUI components. The data section contains any data values strictly created for the current testing file. The body section holds the tests that are being run. The function section can include any number of functions that may be used by the current testing file or any other file that resources it. The resources and body section are required for all test files; the data and function sections can be left empty if the data values and functions being used are from a resourced library or another file. To help equip the automation team with better tools, the Project Lead of the Automated Testing Team, Jason Kapusta, assigned the task to install and train an optical character recognition (OCR

  19. Fostering Multirepresentational Levels of Chemical Concepts: A Framework to Develop Educational Software

    Science.gov (United States)

    Marson, Guilherme A.; Torres, Bayardo B.

    2011-01-01

    This work presents a convenient framework for developing interactive chemical education software to facilitate the integration of macroscopic, microscopic, and symbolic dimensions of chemical concepts--specifically, via the development of software for gel permeation chromatography. The instructional role of the software was evaluated in a study…

  20. Way of Working for Embedded Control Software using Model-Driven Development Techniques

    NARCIS (Netherlands)

    Bezemer, M.M.; Groothuis, M.A.; Brugali, D.; Schlegel, C.; Broenink, Johannes F.

    2011-01-01

    Embedded targets normally do not have much resources to aid developing and debugging the software. So model-driven development (MDD) is used for designing embedded software with a `first time right' approach. For such an approach, a good way of working (WoW) is required for embedded software

  1. From Concept to Software: Developing a Framework for Understanding the Process of Software Design.

    Science.gov (United States)

    Mishra, Punyashloke; Zhao, Yong; Tan, Sophia

    1999-01-01

    Discussion of technological innovation and the process of design focuses on the design of computer software. Offers a framework for understanding the design process by examining two computer programs: FliPS, a multimedia program for learning complex problems in chemistry; and Tiger, a Web-based program for managing and publishing electronic…

  2. Developing safety-critical software: a practical guide for aviation software and DO-178c compliance

    National Research Council Canada - National Science Library

    Rierson, Leanna

    2013-01-01

    ... of a particular pedagogical approach or particular use of the MATLAB® and Simulink® software. CRC Press Taylor & Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487-2742 © 2013 by Taylor & Francis Group, LLC CRC Press is an imprint of Taylor & Francis Group, an Informa business No claim to original U.S. Government works Versi...

  3. Managing distributed software development in the Virtual Astronomical Observatory

    Science.gov (United States)

    Evans, Janet D.; Plante, Raymond L.; Boneventura, Nina; Busko, Ivo; Cresitello-Dittmar, Mark; D'Abrusco, Raffaele; Doe, Stephen; Ebert, Rick; Laurino, Omar; Pevunova, Olga; Refsdal, Brian; Thomas, Brian

    2012-09-01

    The U.S. Virtual Astronomical Observatory (VAO) is a product-driven organization that provides new scientific research capabilities to the astronomical community. Software development for the VAO follows a lightweight framework that guides development of science applications and infrastructure. Challenges to be overcome include distributed development teams, part-time efforts, and highly constrained schedules. We describe the process we followed to conquer these challenges while developing Iris, the VAO application for analysis of 1-D astronomical spectral energy distributions (SEDs). Iris was successfully built and released in less than a year with a team distributed across four institutions. The project followed existing International Virtual Observatory Alliance inter-operability standards for spectral data and contributed a SED library as a by-product of the project. We emphasize lessons learned that will be folded into future development efforts. In our experience, a well-defined process that provides guidelines to ensure the project is cohesive and stays on track is key to success. Internal product deliveries with a planned test and feedback loop are critical. Release candidates are measured against use cases established early in the process, and provide the opportunity to assess priorities and make course corrections during development. Also key is the participation of a stakeholder such as a lead scientist who manages the technical questions, advises on priorities, and is actively involved as a lead tester. Finally, frequent scheduled communications (for example a bi-weekly tele-conference) assure issues are resolved quickly and the team is working toward a common vision.

  4. Decreasing costs of ground data processing system development using a software product line

    Science.gov (United States)

    Chaffin, Brian

    2005-01-01

    In this paper, I describe software product lines and why a Ground Data Processing System should use one. I also describe how to develop a software product line, using examples from an imaginary Ground Data Processing System.

  5. Developing sustainable software solutions for bioinformatics by the “ Butterfly” paradigm

    Science.gov (United States)

    Ahmed, Zeeshan; Zeeshan, Saman; Dandekar, Thomas

    2014-01-01

    Software design and sustainable software engineering are essential for the long-term development of bioinformatics software. Typical challenges in an academic environment are short-term contracts, island solutions, pragmatic approaches and loose documentation. Upcoming new challenges are big data, complex data sets, software compatibility and rapid changes in data representation. Our approach to cope with these challenges consists of iterative intertwined cycles of development (“ Butterfly” paradigm) for key steps in scientific software engineering. User feedback is valued as well as software planning in a sustainable and interoperable way. Tool usage should be easy and intuitive. A middleware supports a user-friendly Graphical User Interface (GUI) as well as a database/tool development independently. We validated the approach of our own software development and compared the different design paradigms in various software solutions. PMID:25383181

  6. Development of an Environment for Software Reliability Model Selection

    Science.gov (United States)

    1992-09-01

    now is directed to other related problems such as tools for model selection, multiversion programming, and software fault tolerance modeling... multiversion programming, 7. Hlardware can be repaired by spare modules, which is not. the case for software, 2-6 N. Preventive maintenance is very important

  7. Automating the Object-Oriented Software Development Process: Workshop Report

    NARCIS (Netherlands)

    Aksit, Mehmet; Tekinerdogan, B.

    1998-01-01

    Cost-effective realization of robust, adaptable and reusable software systems demands efficient and effective management of the overall software production process. Current object-oriented methods are not completely formalized and lack the ability of reasoning about the quality of processes and

  8. Automating the Object-Oriented Software Development Process: Workshop Report

    NARCIS (Netherlands)

    Aksit, Mehmet; Demeyer, S.; Bosch, H.G.P.; Tekinerdogan, B.

    Cost-effective realization of robust, adaptable and reusable software systems demands efficient and effective management of the overall software production process. Current object-oriented methods are not completely formalized and lack the ability of reasoning about the quality of processes and

  9. Software Development Environments on the Web : A Research Agenda

    NARCIS (Netherlands)

    Kats, L.C.L.; Vogelij, R.G.; Kalleberg, K.T.; Visser, E.

    2012-01-01

    Preprint of paper published in: Onward! 2012 - Proceedings of the 11th SIGPLAN symposium on New ideas, new paradigms, and reflections on programming and software, 19-26 October 2012; 10.1145/2384592.2384603 Software is rapidly moving from the desktop to theWeb. The Web provides a generic user

  10. Development of GENOA Progressive Failure Parallel Processing Software Systems

    Science.gov (United States)

    Abdi, Frank; Minnetyan, Levon

    1999-01-01

    A capability consisting of software development and experimental techniques has been developed and is described. The capability is integrated into GENOA-PFA to model polymer matrix composite (PMC) structures. The capability considers the physics and mechanics of composite materials and structure by integration of a hierarchical multilevel macro-scale (lamina, laminate, and structure) and micro scale (fiber, matrix, and interface) simulation analyses. The modeling involves (1) ply layering methodology utilizing FEM elements with through-the-thickness representation, (2) simulation of effects of material defects and conditions (e.g., voids, fiber waviness, and residual stress) on global static and cyclic fatigue strengths, (3) including material nonlinearities (by updating properties periodically) and geometrical nonlinearities (by Lagrangian updating), (4) simulating crack initiation. and growth to failure under static, cyclic, creep, and impact loads. (5) progressive fracture analysis to determine durability and damage tolerance. (6) identifying the percent contribution of various possible composite failure modes involved in critical damage events. and (7) determining sensitivities of failure modes to design parameters (e.g., fiber volume fraction, ply thickness, fiber orientation. and adhesive-bond thickness). GENOA-PFA progressive failure analysis is now ready for use to investigate the effects on structural responses to PMC material degradation from damage induced by static, cyclic (fatigue). creep, and impact loading in 2D/3D PMC structures subjected to hygrothermal environments. Its use will significantly facilitate targeting design parameter changes that will be most effective in reducing the probability of a given failure mode occurring.

  11. Software Developed for Analyzing High- Speed Rolling-Element Bearings

    Science.gov (United States)

    Fleming, David P.

    2005-01-01

    COBRA-AHS (Computer Optimized Ball & Roller Bearing Analysis--Advanced High Speed, J.V. Poplawski & Associates, Bethlehem, PA) is used for the design and analysis of rolling element bearings operating at high speeds under complex mechanical and thermal loading. The code estimates bearing fatigue life by calculating three-dimensional subsurface stress fields developed within the bearing raceways. It provides a state-of-the-art interactive design environment for bearing engineers within a single easy-to-use design-analysis package. The code analyzes flexible or rigid shaft systems containing up to five bearings acted upon by radial, thrust, and moment loads in 5 degrees of freedom. Bearing types include high-speed ball, cylindrical roller, and tapered roller bearings. COBRA-AHS is the first major upgrade in 30 years of such commercially available bearing software. The upgrade was developed under a Small Business Innovation Research contract from the NASA Glenn Research Center, and incorporates the results of 30 years of NASA and industry bearing research and technology.

  12. The Five 'R's' for Developing Trusted Software Frameworks to increase confidence in, and maximise reuse of, Open Source Software.

    Science.gov (United States)

    Fraser, Ryan; Gross, Lutz; Wyborn, Lesley; Evans, Ben; Klump, Jens

    2015-04-01

    Recent investments in HPC, cloud and Petascale data stores, have dramatically increased the scale and resolution that earth science challenges can now be tackled. These new infrastructures are highly parallelised and to fully utilise them and access the large volumes of earth science data now available, a new approach to software stack engineering needs to be developed. The size, complexity and cost of the new infrastructures mean any software deployed has to be reliable, trusted and reusable. Increasingly software is available via open source repositories, but these usually only enable code to be discovered and downloaded. As a user it is hard for a scientist to judge the suitability and quality of individual codes: rarely is there information on how and where codes can be run, what the critical dependencies are, and in particular, on the version requirements and licensing of the underlying software stack. A trusted software framework is proposed to enable reliable software to be discovered, accessed and then deployed on multiple hardware environments. More specifically, this framework will enable those who generate the software, and those who fund the development of software, to gain credit for the effort, IP, time and dollars spent, and facilitate quantification of the impact of individual codes. For scientific users, the framework delivers reviewed and benchmarked scientific software with mechanisms to reproduce results. The trusted framework will have five separate, but connected components: Register, Review, Reference, Run, and Repeat. 1) The Register component will facilitate discovery of relevant software from multiple open source code repositories. The registration process of the code should include information about licensing, hardware environments it can be run on, define appropriate validation (testing) procedures and list the critical dependencies. 2) The Review component is targeting on the verification of the software typically against a set of

  13. Knowledge-Based Software Assistant Advanced Development Model (KBSA/ADM)

    National Research Council Canada - National Science Library

    Faris, Chris

    1998-01-01

    ... context of: managing the complexity inherent in software development activities; enhancing coordination especially among large development teams composed from different skills sets, stakeholders, experience levels etc...

  14. Exploratory research for the development of a computer aided software design environment with the software technology program

    Science.gov (United States)

    Hardwick, Charles

    1991-01-01

    Field studies were conducted by MCC to determine areas of research of mutual interest to MCC and JSC. NASA personnel from the Information Systems Directorate and research faculty from UHCL/RICIS visited MCC in Austin, Texas to examine tools and applications under development in the MCC Software Technology Program. MCC personnel presented workshops in hypermedia, design knowledge capture, and design recovery on site at JSC for ISD personnel. The following programs were installed on workstations in the Software Technology Lab, NASA/JSC: (1) GERM (Graphic Entity Relations Modeler); (2) gIBIS (Graphic Issues Based Information System); and (3) DESIRE (Design Recovery tool). These applications were made available to NASA for inspection and evaluation. Programs developed in the MCC Software Technology Program run on the SUN workstation. The programs do not require special configuration, but they will require larger than usual amounts of disk space and RAM to operate properly.

  15. Stakeholder co-development of farm level nutrient management software

    Science.gov (United States)

    Buckley, Cathal; Mechan, Sarah; Macken-Walsh, Aine; Heanue, Kevin

    2013-04-01

    Over the last number of decades intensification in the use nitrogen (N) and phosphorus (P) in agricultural production has lead to excessive accumulations of these nutrients in soils, groundwaters and surface water bodies (Sutton et al., 2011). According to the European Environment Agency (2012) despite some progress diffuse pollution from agriculture is still significant in more than 40% of Europe's water bodies in rivers and coastal waters, and in one third of the water bodies in lakes and transitional waters. Recently it was estimated that approximately 29% of monitored river channel length is polluted to some degree across the Republic of Ireland. Agricultural sources were suspected in 47 per cent of cases (EPA, 2012). Farm level management practices to reduce nutrient transfers from agricultural land to watercourses can be divided into source reduction and source interception approaches (Ribaudo et al., 2001). Source interception approaches involve capturing nutrients post mobilisation through policy instruments such as riparian buffer zones or wetlands. Conversely, the source reduction approach is preventative in nature and promotes strict management of nutrient at farm and field level to reduce risk of mobilisation in the first instance. This has the potential to deliver a double dividend of reduced nutrient loss to the wider ecosystem while maximising economic return to agricultural production at the field and farm levels. Adoption and use of nutrient management plans among farmers is far from the norm. This research engages key farmer and extension stakeholders to explore how current nutrient management planning software and outputs should be developed to make it more user friendly and usable in a practical way. An open innovation technology co-development approach was adopted to investigate what is demanded by the end users - farm advisors and farmers. Open innovation is a knowledge management strategy that uses the input of stakeholders to improve

  16. IDEAS and App Development Internship in Hardware and Software Design

    Science.gov (United States)

    Alrayes, Rabab D.

    2016-01-01

    In this report, I will discuss the tasks and projects I have completed while working as an electrical engineering intern during the spring semester of 2016 at NASA Kennedy Space Center. In the field of software development, I completed tasks for the G-O Caching Mobile App and the Asbestos Management Information System (AMIS) Web App. The G-O Caching Mobile App was written in HTML, CSS, and JavaScript on the Cordova framework, while the AMIS Web App is written in HTML, CSS, JavaScript, and C# on the AngularJS framework. My goals and objectives on these two projects were to produce an app with an eye-catching and intuitive User Interface (UI), which will attract more employees to participate; to produce a fully-tested, fully functional app which supports workforce engagement and exploration; to produce a fully-tested, fully functional web app that assists technicians working in asbestos management. I also worked in hardware development on the Integrated Display and Environmental Awareness System (IDEAS) wearable technology project. My tasks on this project were focused in PCB design and camera integration. My goals and objectives for this project were to successfully integrate fully functioning custom hardware extenders on the wearable technology headset to minimize the size of hardware on the smart glasses headset for maximum user comfort; to successfully integrate fully functioning camera onto the headset. By the end of this semester, I was able to successfully develop four extender boards to minimize hardware on the headset, and assisted in integrating a fully-functioning camera into the system.

  17. Multi-threaded software framework development for the ATLAS experiment

    CERN Document Server

    AUTHOR|(INSPIRE)INSPIRE-00226135; Baines, John; Bold, Tomasz; Calafiura, Paolo; Dotti, Andrea; Farrell, Steven; Leggett, Charles; Malon, David; Ritsch, Elmar; Snyder, Scott; Tsulaia, Vakhtang; van Gemmeren, Peter; Wynne, Benjamin

    2016-01-01

    ATLAS's current software framework, Gaudi/Athena, has been very successful for the experiment in LHC Runs 1 and 2. However, its single threaded design has been recognised for some time to be increasingly problematic as CPUs have increased core counts and decreased available memory per core. Even the multi-process version of Athena, AthenaMP, will not scale to the range of architectures we expect to use beyond Run2. ATLAS examined the requirements on an updated multi-threaded framework and laid out plans for a new framework, including better support for high level trigger (HLT) use cases, in 2014. In this paper we report on our progress in developing the new multi-threaded task parallel extension of Athena, AthenaMT. Implementing AthenaMT has required many significant code changes. Progress has been made in updating key concepts of the framework, to allow the incorporation of different levels of thread safety in algorithmic code (from un-migrated thread-unsafe code, to thread safe copyable code to reentrant co...

  18. Developing infrared array controller with software real time operating system

    Science.gov (United States)

    Sako, Shigeyuki; Miyata, Takashi; Nakamura, Tomohiko; Motohara, Kentaro; Uchimoto, Yuka Katsuno; Onaka, Takashi; Kataza, Hirokazu

    2008-07-01

    Real-time capabilities are required for a controller of a large format array to reduce a dead-time attributed by readout and data transfer. The real-time processing has been achieved by dedicated processors including DSP, CPLD, and FPGA devices. However, the dedicated processors have problems with memory resources, inflexibility, and high cost. Meanwhile, a recent PC has sufficient resources of CPUs and memories to control the infrared array and to process a large amount of frame data in real-time. In this study, we have developed an infrared array controller with a software real-time operating system (RTOS) instead of the dedicated processors. A Linux PC equipped with a RTAI extension and a dual-core CPU is used as a main computer, and one of the CPU cores is allocated to the real-time processing. A digital I/O board with DMA functions is used for an I/O interface. The signal-processing cores are integrated in the OS kernel as a real-time driver module, which is composed of two virtual devices of the clock processor and the frame processor tasks. The array controller with the RTOS realizes complicated operations easily, flexibly, and at a low cost.

  19. Multi-threaded Software Framework Development for the ATLAS Experiment

    CERN Document Server

    Stewart, Graeme; The ATLAS collaboration; Baines, John; Calafiura, Paolo; Dotti, Andrea; Farrell, Steven; Leggett, Charles; Malon, David; Ritsch, Elmar; Snyder, Scott; Tsulaia, Vakhtang; van Gemmeren, Peter; Wynne, Benjamin

    2016-01-01

    ATLAS's current software framework, Gaudi/Athena, has been very successful for the experiment in LHC Runs 1 and 2. However, its single threaded design has been recognised for some time to be increasingly problematic as CPUs have increased core counts and decreased available memory per core. Even the multi-process version of Athena, AthenaMP, will not scale to the range of architectures we expect to use beyond Run2. ATLAS examined the requirements on an updated multi-threaded framework and layed out plans for a new framework, including better support for high level trigger (HLT) use cases, in 2014. In this paper we report on our progress in developing the new multi-threaded task parallel extension of Athena, AthenaMT. Implementing AthenaMT has required many significant code changes. Progress has been made in updating key concepts of the framework, to allow the incorporation of different levels of thread safety in algorithmic code (from un-migrated thread-unsafe code, to thread safe copyable code to reentrant c...

  20. Technical Challenges in Developing Software to Collect Twitter Data

    Directory of Open Access Journals (Sweden)

    Daniel Chudnov

    2014-10-01

    Full Text Available Over the past two years, George Washington University Libraries developed Social Feed Manager (SFM, a Python and Django-based application for collecting social media data from Twitter. Expanding the project from a research prototype to a more widely useful application has presented a number of technical challenges, including changes in the Twitter API, supervision of simultaneous streaming processes, management, storage, and organization of collected data, meeting researcher needs for groups or sets of data, and improving documentation to facilitate other institutions’ installation and use of SFM. This article will describe how the Social Feed Manager project addressed these issues, use of supervisord to manage processes, and other technical decisions made in the course of this project through late summer 2014. This article is targeted towards librarians and archivists who are interested in building collections around web archives and social media data, and have a particular interest in the technical work involved in applying software to the problem of building a sustainable collection management program around these sources.