Abstract

In this paper, we analyze the parallel structural features of UML state machine diagrams and sequence diagrams, and put forward the technique used to describe parallel regions in a state machine diagram and parallel fragments in a sequence diagram through the parallel structure units of Petri nets. Then, we validate the common behavior consistency of state machines and sequence diagrams by introducing the Petri net language and equivalence theory, and present UML model’s consistency analysis technique based on Petri net processes and occurrence nets. The consistency analysis technique is also extended to consistent validation of other UML diagrams.

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