Congruence from the operator's point of view: compositionality requirements on process semantics

M. Gazda, W.J. Fokkink

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Abstract

One of the basic sanity properties of a behavioural semantics is that it constitutes a congruence with respect to standard process operators. This issue has been traditionally addressed by the development of rule formats for transition system specifications that define process algebras. In this paper we suggest a novel, orthogonal approach. Namely, we focus on a number of process operators, and for each of them attempt to find the widest possible class of congruences. To this end, we impose restrictions on sublanguages of Hennessy-Milner logic, so that a semantics whose modal characterization satisfies a given criterion is guaranteed to be a congruence with respect to the operator in question. We investigate action prefix, alternative composition, two restriction operators, and parallel composition.
Original languageEnglish
Pages (from-to)15-25
JournalElectronic Proceedings in Theoretical Computer Science
Volume32
DOIs
Publication statusPublished - 2010

Bibliographical note

Proceedings title: Proc. 7th Workshop on Structural Operational Semantics - SOS'10

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