Under supply and demand network environment for role-based modeling and researching of workflow
供需网环境下基于角色的工作流建模研究*

The current modeling of workflows is mostly based on the processes instead of highlighting the roles in supply and demand network environment and their interactive process.Based on this situation,this research first introduced the concept and attribute of roles in supply and demand network.Then it borrowed ideas from the advantages of adopting formal and informal method to modeling and systematically summarized the modeling methods and approaches.This paper proposed the role-based modeling for supply and demand network.Finally,it proved the stability of the model by the theory of Markov chain.This kind of modeling thought is beneficial to expand the scope of application of the workflow management system and successful in ensuring the security and stability of the supply and demand network system.