The silent step in time

  • A. S. Klusener
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 630)


In untimed process algebras such as CCS and ACP the silent step enables abstraction from internal actions. Several formalizations of abstraction have been introduced, such as observational congruence, delay bisimulation and branching bisimulation. However, in real time process algebras, such as ACPρ, the silent step has not yet received much attention, so far. Therefore, we formalize these semantics regarding the silent step into real time process algebra. We study the characterizing laws, which correspond closely to the untimed laws, and we investigate which of the semantics is appropriate in the context of ACPρ.

1985 Mathematics Subject Classification


1982 CR Categories

D.3.1 F.3.1 J.7 

Key Words & Phrases

Real Time Process Algebra ACP Abstraction 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • A. S. Klusener
    • 1
  1. 1.Dept. of Softw. Techn.CWIAB AmsterdamThe Netherlands

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