【摘要】 针对传统的RBAC模型的不足,对角色权限及角色层次关系进行了分析,提出了一个改进的角色访问控制模型-ERBAC。应用实例说明,新模型在描述同样的角色关系时角色数量比传统模型要少,因而比传统模型更加简化和直观,特别适合于管理信息系统的应用。更多还原

【Abstract】 Combined with the Analysis of subjects of role permissions and role hierarchies,an improved role-based access control(RBAC) model-ERBAC is introduced against the imperfections of the famous RBAC model.As an example,the application with it show that it is simpler and more comprehensible to describe the same role relationships in the improved model with still less roles than the traditional one.It is more suitable to be used in MIS.更多还原