... le Hierarchy)传递性、用户角色分配关系(UA,User-Role Assignment)的继承性和权限角色分配关系(PA,Permission-Role Assignment)的继承性,以及RBAC中的静态职权分离约束和动态职权分离约束等.
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But the traditional RBAC model doesnot give the method to control the role assignment and it cannot assure the least priority of the role's permission.
但传统的RBAC模型既没有给出控制角色指派的方法，也不能保证角色许可最少优先原则。
But the traditional RBAC mode does not give the method to control the role assignment and it cannot assure the least priority of the role 's permission.
但传统的RBAC模型既没有给出控制角色指派的方法，也不能保证角色许可最少优先原则。
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