Duration Properties over Real Time System Designs

  • Authors:
  • Victor Braberman;Fabio Pieniazek

  • Affiliations:
  • Dep. de Computación FCEyN, Universidad de Buenos Aires, Argentina;Dep. de Computación FCEyN, Universidad de Buenos Aires, Argentina

  • Venue:
  • IWSSD '00 Proceedings of the 10th International Workshop on Software Specification and Design
  • Year:
  • 2000

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Abstract

Constraints on the accumulated sojourn time at particular system states are among the possible requirements for a real-time system. These requirements are called duration properties. The need to predict temporal behavior of critical real-time systems has encouraged the development of a useful collection of results for run-time scheduling as well as an interesting set of formal automatic techniques based on model-checking. However, no automatic technique directly supports the verification of duration requirements over physical designs of real-time software. In [6] it is presented an approach that applies known scheduling theory to automatically derive simple and compositional formal models based on timed automata [1]. In this article, we combine that modeling method with a conservative algorithm that extends [5] to check duration properties over the resulting timed automata.