【摘要】 针对传统的角色访问控制(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】 In consideration of the drawbacks of a traditional model of role-based access control (RBAC),the role permission and hierarchies are analyzed.A model,ERABC for improving role-based access control is proposed.Application example demonstrates that roles are less in the new model than that of traditional one in characterizing the same role relation,which is more simplified and visualized than that of traditional model,and suitable for management and information system.更多还原