QUAASY: QUality Assurance of Adaptive SYstems

  • Authors:
  • Markus Luckey;Christian Gerth;Christian Soltenborn;Gregor Engels

  • Affiliations:
  • University of Paderborn, Paderborn, Germany;University of Paderborn, Paderborn, Germany;University of Paderborn, Paderborn, Germany;University of Paderborn, Paderborn, Germany

  • Venue:
  • Proceedings of the 8th ACM international conference on Autonomic computing
  • Year:
  • 2011

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Abstract

The emerging approach to tackle the increasing complexity of today's software systems is the use of self-adaptation techniques. Modeling and implementing adaptivity features is a burdensome and error-prone task that potentially results in erroneous system models. As a consequence, quality analysis and assurance must be considered early in the development of self-adaptive systems. We propose a quality assurance approach for self-adaptive systems in terms of an integrated modeling and analysis approach, which helps identifying errors in modeled self-adaptive systems early in the design process. We employ a modeling language for self-adaptive systems including adaptation rules and formally define their semantics. Given the language and its formal semantics, we formulate quality properties, such as fairness of the specified adaptation rule system. These quality properties are verified using a model checking approach.