RELAX: Incorporating Uncertainty into the Specification of Self-Adaptive Systems

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Abstract

Self-adaptive systems have the capability to autonomously modify their behavior at run-time in response to changes in their environment. Self-adaptation is particularly necessary for applications that must run continuously, even under adverse conditions and changing requirements; sample domains include automotive systems, telecomm-unications, and environmental monitoring systems. While a few techniques have been developed to support the monitoring and analysis of requirements for adaptive systems, limited attention has been paid to the actual creation and specification of requirements of self-adaptive systems. As a result, self-adaptivity is often constructed in an ad-hoc manner. In this paper, we argue that a more rigorous treatment of requirements explicitly relating to self-adaptivity is needed and that, in particular, requirements languages for self-adaptive systems should include explicit constructs for specifying and dealing with the uncertainty inherent in self-adaptive systems. We present RELAX, a new requirements language for selfadaptive systems and illustrate it using examples from the smart home domain.

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Publication date2009
Publication titleProceedings of the 17th IEEE International Requirements Engineering Conference (RE '09)
Pages79-88
Number of pages10
Original languageEnglish

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© 2009 IEEE

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Employable Graduates; Exploitable Research

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