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Download e-book for kindle: Assurances for Self-Adaptive Systems: Principles, Models, by Maxime Cordy, Andreas Classen, Patrick Heymans, Axel Legay,

By Maxime Cordy, Andreas Classen, Patrick Heymans, Axel Legay, Pierre-Yves Schobbens (auth.), Javier Cámara, Rogério de Lemos, Carlo Ghezzi, Antónia Lopes (eds.)

ISBN-10: 3642362486

ISBN-13: 9783642362484

ISBN-10: 3642362494

ISBN-13: 9783642362491

The expanding complexity of platforms and the starting to be uncertainty of their operational environments have created a serious have to advance platforms capable of increase their operation, adapt to alter, and get over mess ups autonomously. this case has ended in fresh advances in self-adaptive platforms capable of reconfigure their constitution and adjust their habit at run-time to conform to environmental adjustments. regardless of those advances, one key element of self-adaptive structures that is still to be tackled extensive is "assurances": the supply of facts that the process satisfies its said sensible and non-functional necessities in the course of its operation within the presence of self-adaptation. This booklet is likely one of the results of the ESEC/FSE 2011 Workshop on Assurances for Self-Adaptive structures (ASAS), held in Szeged, Hungary, in September 2011. It includes prolonged models of a few of the papers awarded throughout the workshop, in addition to invited papers from famous specialists. The 12 refereed papers have been completely reviewed and chosen. The booklet involves 4 components: formal verification, types and middleware, failure prediction, and coverage techniques.

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Extra resources for Assurances for Self-Adaptive Systems: Principles, Models, and Techniques

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Without going into much detail or providing formal proofs, we compare our work with theirs and identify the commonalities and differences between the two. ATL is a logic able to express temporal properties on multi-agent systems and concurrent game structures. It provides a special quantifier << A >> where A is a set of agents or players working together to meet specific goals. The semantics of this operator makes use of a definition of strategy as well : << A >> ϕ is satisfied if and only if the players in A can find a strategy such that any execution following this strategy satisfies ϕ.

A-FTS are just a fundamental model, that is used by the tools but leads to lengthy descriptions, difficult to manage by humans. It is therefore important to provide more manageable high-level languages, that can be compiled (on-the-fly) to A-FTS. These languages need to cover different levels of abstraction: the most abstract levels Model Checking Adaptive Software 25 allowing a rapid analysis, while the most detailed can be directly used to generate executable code. This raise the question of refinement : can we guarantee that the analysis performed at the abstract level remains valid at the more concrete level?

AdaCTL is thus different from fCTL in both syntax and semantics, in the same way as the classical logics ATL and CTL are different. A comparison between AdaCTL and ATL is given further in this section. 2 23 Verification of Adaptive Systems The verification of adaptive systems is a topic that received a lot of attention from the scientific community. The work related to that context being particularly large, we focus here on the most recent results. In their research roadmap for adaptive systems [13], Cheng et al.

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Assurances for Self-Adaptive Systems: Principles, Models, and Techniques by Maxime Cordy, Andreas Classen, Patrick Heymans, Axel Legay, Pierre-Yves Schobbens (auth.), Javier Cámara, Rogério de Lemos, Carlo Ghezzi, Antónia Lopes (eds.)

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