摘要： 基于角色的存取控制提供了一套极其灵活的机制来管理具有多用户、多对象、多应用的复杂系统的存取控制。Nyanchama和Osborn的角色图模型即为一个基于角色的存取控制如何被实现的范例。在以往的研究中，也已表明了已有系统的存取控制信息是如何被抽取并重视为角色图的。研究进一步表明，当两个系统进行集成时，它们的角色图也可以被集成。

关键词: 集成安全系统, 基于角色的存取控制, 角色图

Abstract: Role-based access control provides a very flexible set of mechanisms for managing the access control of a complex system withmany users,objects and aPPlications.The role gfaph model of Nyanchama and osborn is one example of how role-based access control can beimplementod.In our prevthes research,we have also shown how the access control information of existing systems can be extracted andrapresented as a role graph.In this paper,we extend this research by showing how,when two systems are being integrated,their role graphs canbe integrated.

中图分类号: 

• TP393.0