Fine Grain Extension and Application of the RBAC Model
RBAC模型的细粒度扩充及应用

Role-Based Access Control(RBAC) is a kind of access control mechanism which is secure and high perform- ance.But the standard for RBAC2001 model does not give the method which based the character of department,func- tion and data to control the role assignment.Combining with the idea of RBAC model and the requirement of large-scale enterprise information system,the article make fine grain extension on Core RBAC model,and thinning the role assign- ment in the dimensionality of department,function and data.At last,this article gives practical application of the mod- el,and resolves effectively the question that secure access control difficult to thin in large-scale enterprise information system.