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Architectural Reasoning Support for Product-Lines of Self-adaptive Software Systems: A Case Study
Linnaeus University, Faculty of Technology, Department of Computer Science.
Linnaeus University, Faculty of Technology, Department of Computer Science.ORCID iD: 0000-0001-5471-551X
2015 (English)In: Software Architecture: 9th European Conference, ECSA 2015, Dubrovnik/Cavtat, Croatia, September 7-11, 201 / [ed] Danny Weyns, Raffaela Mirandola, Ivica Crnkovic, 2015, p. 20-36Conference paper, Published paper (Refereed)
Resource type
Text
Abstract [en]

Software architecture serves as a foundation for the design and development of software systems. Designing an architecture requires extensive analysis and reasoning. The study presented herein focuses on the architectural analysis and reasoning in support of engineering self-adaptive software systems with systematic reuse. Designing self-adaptive software systems with systematic reuse introduces variability along three dimensions; adding more complexity to the architectural analysis and reasoning process. To this end, the study presents an extended Architectural Reasoning Framework with dedicated reasoning support for self-adaptive systems and reuse. To evaluate the proposed framework, we conducted an initial feasibility case study, which concludes that the proposed framework assists the domain architects to increase reusability, reduce fault density, and eliminate differences in skills and experiences among architects, which were our research goals and are decisive factors for a system's overall quality.

Place, publisher, year, edition, pages
2015. p. 20-36
Series
Lecture Notes in Computer Science, ISSN 0302-9743 ; 9278
National Category
Computer and Information Sciences
Research subject
Computer and Information Sciences Computer Science
Identifiers
URN: urn:nbn:se:lnu:diva-48821DOI: 10.1007/978-3-319-23727-5_2ISI: 000365861700002Scopus ID: 2-s2.0-84975686953ISBN: 978-3-319-23727-5 (print)ISBN: 978-3-319-23726-8 (print)OAI: oai:DiVA.org:lnu-48821DiVA, id: diva2:895978
Conference
9th European Conference on Software Architecture (ECSA), SEP 07-11, 2015, Cavtat, CROATIA
Funder
VINNOVAAvailable from: 2016-01-20 Created: 2016-01-15 Last updated: 2018-05-21Bibliographically approved
In thesis
1. Designing Self-Adaptive Software Systems with Reuse
Open this publication in new window or tab >>Designing Self-Adaptive Software Systems with Reuse
2018 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Modern software systems are increasingly more connected, pervasive, and dynamic, as such, they are subject to more runtime variations than legacy systems. Runtime variations affect system properties, such as performance and availability. The variations are difficult to anticipate and thus mitigate in the system design.

Self-adaptive software systems were proposed as a solution to monitor and adapt systems in response to runtime variations. Research has established a vast body of knowledge on engineering self-adaptive systems. However, there is a lack of systematic process support that leverages such engineering knowledge and provides for systematic reuse for self-adaptive systems development. 

This thesis proposes the Autonomic Software Product Lines (ASPL), which is a strategy for developing self-adaptive software systems with systematic reuse. The strategy exploits the separation of a managed and a managing subsystem and describes three steps that transform and integrate a domain-independent managing system platform into a domain-specific software product line for self-adaptive software systems.

Applying the ASPL strategy is however not straightforward as it involves challenges related to variability and uncertainty. We analyzed variability and uncertainty to understand their causes and effects. Based on the results, we developed the Autonomic Software Product Lines engineering (ASPLe) methodology, which provides process support for the ASPL strategy. The ASPLe has three processes, 1) ASPL Domain Engineering, 2) Specialization and 3) Integration. Each process maps to one of the steps in the ASPL strategy and defines roles, work-products, activities, and workflows for requirements, design, implementation, and testing. The focus of this thesis is on requirements and design.

We validate the ASPLe through demonstration and evaluation. We developed three demonstrator product lines using the ASPLe. We also conducted an extensive case study to evaluate key design activities in the ASPLe with experiments, questionnaires, and interviews. The results show a statistically significant increase in quality and reuse levels for self-adaptive software systems designed using the ASPLe compared to current engineering practices.

Place, publisher, year, edition, pages
Växjö: Linnaeus University Press, 2018. p. 56
Series
Linnaeus University Dissertations ; 318/2018
Keywords
Variability, Uncertainty, Self-Adaptation, Software Reuse, Software Design, Methodology, Domain Engineering.
National Category
Software Engineering Computer Sciences Computer and Information Sciences
Research subject
Computer and Information Sciences Computer Science, Computer Science; Computer and Information Sciences Computer Science; Computer Science, Software Technology
Identifiers
urn:nbn:se:lnu:diva-74443 (URN)978-91-88761-51-4 (ISBN)978-91-88761-52-1 (ISBN)
Public defence
2018-04-19, 13:15 (English)
Supervisors
Available from: 2018-05-22 Created: 2018-05-21 Last updated: 2018-05-22Bibliographically approved

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