The Hierarchical Structure of the Workflow Process Definition and Normal Petri Net
工作流过程定义中的分层结构与正则Petri网

The abstract level problem and the classification of the abstract level problem in the workflow process model are discussed. The formalized problem of the abstract level problem in the process model is researched. The concept and definition of the petri net with end-transition and normal petri net according to the control abstract level problem are put forward and discussed. The equivalence of general Petri Net and general Petri Net is proved by the petri net with priori relationship.