Thesis (doctoral)--University of Oulu, 2000. / Includes bibliographical references. Also available on the World Wide Web.

Sixty to eighty per cent of the software life-cycle cost is spent on the software maintenance phase because software maintenance is usually more difficult than original development and legacy systems are generally large and complex. Software reuse has recently been considered as a best solution to enhance the productivity of a software development team and to reduce maintenance costs. In addition, Software Configuration Management (SCM) is a central part of software maintenance as it is associated with changing existing software and is a discipline for controlling these changes. Thus, both software reuse and SCM have been proposed for making a significant improvement in productivity, quality and cost. However, so far these two technologies have been investigated separately. In order for software reuse and SCM to produce effects by synergy, both approaches require to be introduced into a maintenance environment together. Since software reuse and SCM, and software reuse and software maintenance have many similarities in their activities, these disciplines can be integrated within a software maintenance environment. This research has therefore developed an integrated process model for 'Maintenance with Reuse (MwR)', that supports SCM for a reuse library which is actively maintained for use in a software maintenance environment. This thesis addresses an integrated process model called the MwR model and its prototype tool TERRA (Tool for Evolution of a Reusable and Reconfigurable Assets Library) that consist of a configuration management (CM) process, reuse process, maintenance process and administration of a reuse library. The MwR model and TERRA provide reusers and maintainers with many activities of these four processes such as classifying, storing, retrieving, evaluating, and propagating reusable components, including controlling changes to both reusable components and existing systems. The process model of an integrated approach has been developed and validated using Process Weaver. The TERRA tool has been implemented on the WWW so that the prototype can provide portability, traceability, integration with existing tools, and a distributed maintenance environment. The TERRA prototype has been tested and evaluated through a scenario based case study. Several scenarios based on real data have been created and used for the case study so that an organisation can apply the model and tool to its maintenance environment without many problems. The software maintenance community is facing serious problems with legacy systems, such as a ever increasing frequency of changes and backlogs, lack of integrated tools and methods, and lack of software maintenance support environments. The control and management of changes to the software components in a reuse repository are crucial to successful software development and maintenance. If the component is being used in multiple systems effects of uncontrolled change are more critical. However, reuse libraries and servers currently available have not been successful as they do not support further development or maintenance of the reusable components. In addition, most of them are not sophisticated since they have not been linked to a development/maintenance environment. The integrated model of MwR can overcome many problems that exist in software maintenance and reuse through introduction of SCM functionalities into a maintenance environment. Thus, the integration of these common activities will greatly contribute to enhancing the productivity and quality of software, and will additionally lead to reducing the costs and backlogs of changes within a maintenance environment.

Submitted by Marcele Costal de Castro (costalcastro@gmail.com) on 2017-10-10T16:47:10Z No. of bitstreams: 1 LEONARDO FALCÃO KOBLITZ M.pdf: 2798440 bytes, checksum: e6bbe4d0c09a231a9612c35acb27e46b (MD5) / Made available in DSpace on 2017-10-10T16:47:10Z (GMT). No. of bitstreams: 1 LEONARDO FALCÃO KOBLITZ M.pdf: 2798440 bytes, checksum: e6bbe4d0c09a231a9612c35acb27e46b (MD5) Previous issue date: 1991-04 / Este trabalho apresenta o SAGCS, uma ferramenta automatizada para gerenciamento da configuração de software para ambientes DOS. Além de controlar o acesso aos arquivos sob seu controle, fornece vários relatórios, que permitem o usuário acompanhar precisamente a evolução do sistema. Em conjunto com esta ferramenta, são sugeridos um modelo e procedimentos para a elaboração e implantação de um plano de gerenciamento da configuração de software que melhor atenda as características de cada projeto de software.

<p> </p><p>Nowadays, as the use of computers is rapidly spreading to our life, software is getting more and more complex and large in computer systems. Therefore, the software configuration management (SCM) is playing an increasingly important role in the software development process. One of its significant activities is change management, which has an outstanding role in dealing with the continued and concurrent change requirements during the system development and use.</p><p>In this report, we describe some basic activities of SCM, overview some representative SCM CASE tools with emphasizing on change management and analyze a possibility of integration of SCM version management tool (e.g., Subversion) and error management tool (e.g., Bugzialla) in order to provide an integrated software configuration management and change management. Moreover, a set of exercises based on RCS are developed, which illustrate some SCM simple activities and their modification to facilitate version management and change management.</p><p> </p>

Thesis (Ph. D.)--University of Alabama at Birmingham, 2007. / Additional advisors: Dale W. Callahan, Laurie Joiner, Helmuth F. Orthner, Gregg Vaughn. Description based on contents viewed Oct. 6, 2008; title from PDF t.p. Includes bibliographical references.

Nowadays, as the use of computers is rapidly spreading to our life, software is getting more and more complex and large in computer systems. Therefore, the software configuration management (SCM) is playing an increasingly important role in the software development process. One of its significant activities is change management, which has an outstanding role in dealing with the continued and concurrent change requirements during the system development and use. In this report, we describe some basic activities of SCM, overview some representative SCM CASE tools with emphasizing on change management and analyze a possibility of integration of SCM version management tool (e.g., Subversion) and error management tool (e.g., Bugzialla) in order to provide an integrated software configuration management and change management. Moreover, a set of exercises based on RCS are developed, which illustrate some SCM simple activities and their modification to facilitate version management and change management.

The growth of applications for embedded processors has spawned a need for highly configurable devices. Custom microprocessors have long life cycles for a fast paced market, where as off-the-shelf designs often do not provide the level of configuration, nor the ability to allow system-on-chip designs. This paper presents a description for a software environment that allows designers to provide configuration options for a design, and responds by dynamically reconfiguring the environment to provide a ready to test design. A background survey is provided on current embedded RISC architectures, along with a proposed new embedded ISA and a cycle-level simulator. Justification is presented for a new instruction format to reduce code size with little loss to performance. A manual is also provided for the new ISA. / Graduation date: 2003

<p>One source of input data for software evolution research is data stored inside a software configuration management repository. The data includes different versions of a software system’s source code as well as version history metadata, such as check-in dates or log messages. Inherently, extracting this data manually is a time- and labor intensive task. The subsequent preprocessing step and the appropriate storage of the results, necessary to utilize the data for further analysis, is an additional effort for the researcher.</p><p>The goal of this thesis is to design and implement a front-end plug-in for an existing software comprehension tool, the VizzAnalyzer, providing the capability to extract and analyze multiple versions and evolutional information of software systems from SCM repositories and to store the results. Thereby, the implemented solution provides the infrastructure for software evolution research.</p>

Thesis (Ph. D.)--University of California, Riverside, 2008. / Includes abstract. Title from first page of PDF file (viewed February 3, 2010). Available via ProQuest Digital Dissertations. Includes bibliographical references (p. 122-129). Also issued in print.

Thesis (M.S.)--West Virginia University, 2003. / Title from document title page. Document formatted into pages; contains x, 86 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 84).