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  In large modern enterprise information secure systems,the management of users and access rights is a complex and important problem.The Role-Based Access Control(RBAC) models have been applied widely as a generalized approach to access control.However the authorization of users in large systems,the authorization for users only based on role can not meet the access control requirement.In this paper,a group oriented access control model is proposed,which is based on RBAC model and further improve it.In the model,the user is governed by group and permission is organized by the role.The model can meet usersrequirements of security and implement the access control for users well in control policy and effectivity.……   
[关键词]:RBAC;User model;Web security
[文献类型]:会议论文
[文献出处]: 《第二十四届中国数据库学术会议论文集(技术报告篇)2007年
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