Analyzing schedulability of astral specifications using extended timed automata

  • K. Brink
  • J. van Katwijk
  • R. F. Lutje Spelberg
  • W. J. Toetenel
Workshop 20: Real-Time Systems and Constraints
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1300)


This paper reports our experiences with using an extension of timed automata [1] for schedulability analysis of prototype implementations. The approach builds upon requirements specifications constructed using the formal real-time specification language Astral [7]. Astral specifications are translated into extended timed automata. The resulting automata are augmented with implementation details like assignment of processes to processors, priorities, worst-case execution times of operations, and scheduling policies. Schedulability analysis is then performed by (automated) formal verification of the extended automaton.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • K. Brink
    • 1
  • J. van Katwijk
    • 1
  • R. F. Lutje Spelberg
    • 1
  • W. J. Toetenel
    • 1
  1. 1.Department of Technical Mathematics and Computer ScienceDelft University of TechnologyDelftThe Netherlands

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