J4 ›› 2012, Vol. 39 ›› Issue (2): 200-206.doi: 10.3969/j.issn.1001-2400.2012.02.033

• Original Articles • Previous Articles     Next Articles

Synthesis rules of WF-nets and their application in process design

ZHANG Man1;DUAN Zhenhua1,2
  

  1. (1. Research Inst. of Computing Theory & Technology, Xidian Univ., Xi'an  710071, China;
    2. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China)
  • Received:2011-08-03 Online:2012-04-20 Published:2012-05-21
  • Contact: ZHANG Man E-mail:zhangman705@gmail.com

Abstract:

In view of the limitation of one node extension in the node refinement method during the workflow net (WF-net) modeling, a WF-net refinement method based on Petri net synthesis rules is proposed. The synthesis rules of live and bounded free choice nets are added with constraints to adapt them to the refinement of free choice WF-nets. Then separable WF-nets are defined and their separability-preserving synthesis rules are given. It is proved that the synthesized WF-nets by these rules from free choice or separable WF-nets are sound. For the two classes of WF-nets, this method enables their refinement to involve more than one node, and provides their modeling with fine-grained guidelines of a different dimension.

Key words: workflow, Petri net, synthesis rule, free choice WF-net, separable WF-net

CLC Number: 

  • TP311