摘要： 在基于角色的访问控制模型(Role-based Access Control,简称RBAC)的基础上,提出了一种带时间约束和空间约束的角色授权管理模型,给出了模型的定义,解决了相互冲突的角色的授权问题。

关键词: 权限, 角色, 授权, 信息管理

Abstract: This thesis presents a role-based administration of authorization model with time and space character which is based on the model of the role-based access control (RBAC), provides the definition of the model, and solves the authorization problem of the conflicting roles.

中图分类号: 

• TP311.11