RBAC(Role-Based Access Control) has reduced the complexity and cost of authorized privilege management effectively,and can provide a more security environment.

• 基于角色的访问控制技术RBAC(Role_based Access Control)有效地解决了权限管理的复杂性；降低了管理开销；还能为管理员提供一个较好的安全政策的环境.