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Parametric channels via label expressions in CCS. (English) Zbl 0542.68017
Summary: CCS, the Calculus of Communicating Systems devised by Milner, has proved extremely successful for providing, via translation, a sound mathematical basis for a wide class of concurrent languages. Nevertheless, as it stands, it suffers from a limitation: it is impossible to determine at run time the channel on which to send or receive a communication. There are various possibilities for giving CCS such ability, but the price can be a drastic change in the language and the theory of CCS. Here we present a simple solution to this problem, which keeps language and theory almost unchanged, at least in fundamental aspects: the essential idea is to extend CCS by allowing (channel-) label expressions. We also show various applications of this extended version of CCS.

MSC:
68N25 Theory of operating systems
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