提出从静态、功能需求、动态观点来分析模型，并利用UML来表示基于角色访问控制模型。
Present the RBAC model with this well-known modeling language UML , and specify the RBAC model with three views: static view, functional view, and dynamic view.
在RBAC模型的基础上，提出一种基于岗位和角色的两级访问控制模型——PRBAC。
On the basis of RBAC model, this paper put forward a new model PRBAC, which was a twolevel model based on the post and role.
在安全信息系统应用中，传统的基于角色的访问控制模型不能为用户过滤业务数据，容易导致数据失密。
In the application of secure information systems, the traditional role-based access control model can not filter business data for users, which easily results in secret data leakage.
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