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中文摘要：
目前的工作流模型大多是基于过程建模的,并没有强调供需网环境下角色之间的交互关系。基于此,首先讨论了供需网中角色的概念及其属性;然后借鉴形式化和非形式化方式建模的优点,系统总结了模型建模的步骤,提出了供需网环境下基于角色的工作流模型;最后结合马尔可夫链理论验证了模型的稳定性。这种建模思想有利于扩大工作流管理系统的适用范围,保证供需网内部的安全性和稳定性。
英文摘要：
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.
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