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Erschienen in:
1996 | ReviewPaper | Buchkapitel
Causal testing
verfasst von : Ursula Goltz, Heike Wehrheim
Erschienen in: Mathematical Foundations of Computer Science 1996
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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We suggest an equivalence notion for event structures as a semantic model of concurrent systems. It combines the notion of testing (or failure) equivalence with respect to the timing of choices between different executions with a precise account of causalities between action occurrences as in causal semantics. This fills an open gap in the lattice of equivalences considered in comparative concurrency semantics. We show that our notion coincides with a “canonical” equivalence obtained as the usual testing performed on causal trees. Furthermore, we show that it is invariant under action refinement, thus fulfilling a standard criterion for non-interleaving equivalences.