...1.1 基于角色的访问控制模型 Ferraiolo 和Kuhn 在1992 年提出了如图1 所示的基于角色的权限控制模型(Role-Based Access Control,RBAC),随后得到了广泛的认可和应用。
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文章提出了一个具有主动适应机制的，适用基于角色的权限控制模型的系统的通用权限组件。
Therefore, this article proposes a role-based universally privilege controlled component which has the mechanism can actively adapt to different systems.
而基于角色的访问控制模型以角色为中介，将用户与权限逻辑隔离，但该模型不能处理有执行顺序的任务；
Role is introduced to separate user and privilege in role-based access control model, but RBAC can't directly control the permission for a sequence of events.
针对基于角色的访问控制(RBAC)模型中由于继承关系产生的子角色不能拥有私有权限问题进行了研究。
A problem that child role cannot obtain private permissions because of inherited relation in the Role-Based Access Control (RBAC) model is researched.
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