Research on Workflow Participant Mechanism and Dynamic Characteristic Based on Hierarchically Refined Petri Nets

Based on the analysis of participant mechanism in workflow, a Petri net based workflow participant modelling method is put forward The static, competitive, priority ranked and commitment models of participant and their Petri net representations are given The Petri net based workflow place/transition refinement, indicates the relationship between task assignment and participant’s state in workflow execution, showing that the real executive path of workflow process instance is dynamically determined by the participant’s state