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Relating Fairness and Timing in Process Algebras

  • F. Corradini
  • M. R. Di Berardini
  • W. Vogler
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2761)

Abstract

This paper contrasts two important features of parallel system computations: fairness and timing. The study is carried out at specification system level by resorting to a well-known process description language. The language is extended with labels which allow to filter out those process executions that are not (weakly) fair (as in [5,6]), and with upper time bounds for the process activities (as in [2]).

We show that fairness and timing are closely related. Two main results are stated. First, we show that each everlasting (or non-Zeno) timed process execution is fair. Second, we provide a characterization for fair executions of untimed processes in terms of timed process executions. This results in a finite representation of fair executions using regular expressions.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • F. Corradini
    • 1
  • M. R. Di Berardini
    • 1
  • W. Vogler
    • 2
  1. 1.Dipartimento di InformaticaUniversitá di L’Aquila 
  2. 2.Institut für InformatikUniversität Augsburg 

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