This model overcomes the weaknesses of the bad dynamic adaption and the fake constraint of the least privilege. It can enhance the security and practicability of the distributed workflow system.
该模型解决了传统的基于角色访问控制中的动态适应性差和最小权限约束假象的问题，用于分布式工作流管理系统，提高了安全性、实用性。
Undoutedly , distributed network application has its huge privilege, but on the other hand , it is not easy for establishing and maintaining .
但是，人们在感受到分布式网络应用在解决大型复杂任务的优越性的同时，也愈来愈发现构建和维护分布式应用面临的困难。
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