Trace Nets are a variant of one-safe Petri Nets, where input and output places may be filled as well as emptied by transitions. Those extended nets have been introduced by the authors for modelling concurrency in a simple format of structural operational specifications, based on permutation of proved transitions. Trace Nets are connected by an adjunction to a particular class of Trace Automata in the sense of Stark, namely the Separated Trace Automata. The adjunction is based on a calculus of ’regions’ that differ significantly from the ones devised by Ehrenfeucht and Rozenberg for Elementary Nets, although the axioms of separation are the same.
KeywordsTrace Automata Regions Trace Nets
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