A Compositional Approach on Modal Specifications for Timed Systems

  • Authors:
  • Nathalie Bertrand;Axel Legay;Sophie Pinchinat;Jean-Baptiste Raclet

  • Affiliations:
  • INRIA Rennes, France;INRIA Rennes, France;IRISA & Universitééé Rennes 1, France;INRIA Rhône-Alpes, France

  • Venue:
  • ICFEM '09 Proceedings of the 11th International Conference on Formal Engineering Methods: Formal Methods and Software Engineering
  • Year:
  • 2009

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Abstract

On the one hand, modal specifications are classic, convenient, and expressive mathematical objects to represent interfaces of component-based systems. On the other hand, time is a crucial aspect of systems for practical applications, e.g. in the area of embedded systems. And yet, only few results exist on the design of timed component-based systems. In this paper, we propose a timed extension of modal specifications, together with fundamental operations (conjunction, product, and quotient) that enable to reason in a compositional way about timed system. The specifications are given as modal event-clock automata, where clock resets are easy to handle. We develop an entire theory that promotes efficient incremental design techniques.