关键词: 协同环境, 柔性工作流, 访问控制, 分工协作, 职责分离

Abstract: With gradual improvement of collaborative manufacturing mode,the played an important role for the adjustment of organizational structure and business process reengineering.How to balance the To solve the problem that collaboration oriented flexible workflow should combine flexibility and security in dynamic environment,according to the characteristics of collaborative,the concept of team was introduced based on the hierarchical authorization management to realize the combination of role-based static authorization and task-based dynamic control,and a novel access control model was proposed for cooperation-oriented flexible workflow.As for the potential conflict of constraints at different levels due to the flexibility and cooperation,task-based separation of duty was provided,so as to better solve the problem of information security and access control for flexible workflow in dynamic environment.

Key words: collaborative environment, flexible workflow, access control, cooperation, duties separation