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Control Strategies for Self-Adaptive Software Systems
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2017 (English)In: ACM Transactions on Autonomous and Adaptive Systems, ISSN 1556-4665, E-ISSN 1556-4703, Vol. 11, no 4, 24Article in journal (Refereed) Published
Abstract [en]

The pervasiveness and growing complexity of software systems are challenging software engineering to design systems that can adapt their behavior to withstand unpredictable, uncertain, and continuously changing execution environments. Control theoretical adaptation mechanisms have received growing interest from the software engineering community in the last few years for their mathematical grounding, allowing formal guarantees on the behavior of the controlled systems. However, most of these mechanisms are tailored to specific applications and can hardly be generalized into broadly applicable software design and development processes.

This article discusses a reference control design process, from goal identification to the verification and validation of the controlled system. A taxonomy of the main control strategies is introduced, analyzing their applicability to software adaptation for both functional and nonfunctional goals. A brief extract on how to deal with uncertainty complements the discussion. Finally, the article highlights a set of open challenges, both for the software engineering and the control theory research communities.

Place, publisher, year, edition, pages
2017. Vol. 11, no 4, 24
National Category
Software Engineering Control Engineering
Identifiers
URN: urn:nbn:se:umu:diva-135693DOI: 10.1145/3024188OAI: oai:DiVA.org:umu-135693DiVA: diva2:1105184
Projects
Wallenberg Autonomous Systems and Software Program
Available from: 2017-06-02 Created: 2017-06-02 Last updated: 2017-06-02

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Klein, CristianPapadopoulos, Alessandro Vittorio
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Department of Computing Science
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CiteExportLink to record
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