Analyzing and Reducing Simultaneous Firing in Signal-Event Nets

  • Authors:
  • Stephan Roch

  • Affiliations:
  • (Correspd.) Institut für Informatik, Humboldt-Universität zu Berlin, 10099 Berlin, Germany. roch@informatik.hu-berlin.de

  • Venue:
  • Fundamenta Informaticae
  • Year:
  • 2000

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Abstract

Signal-event nets provide a modular modeling technique based on Petri nets. Actions of a module can be activated or can be prevented by another module through condition arcs. One-sided synchronization of modules is done by signal-events, which cause the execution of actions in steps. But due to condition arcs and signal-events simultaneous firing of steps may lead to markings, which are not reachable by conventional sequential interleaving. We give a criterion, in which situations simultaneous firing of steps can be safely omitted, without missing reachable markings.