【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】 Based on the analysis of role permission and role hierarchy,an extended role-based access control(RBAC) model—ERBAC is put forward to mend the imperfections of the famous RBAC model.An application example is given,which illustrates that it is simpler and more comprehensible to describe the same role relationships by using the ERBAC model with less roles in comparison with the traditional RBAC model.The ERBAC model is more suitable for application in the MIS.更多还原