Research and application of an extended role-based access control

Role-based access control (RBAC) model is widely used at the moment. Aiming at the executive order of role and time limit of permissions on RBAC96, this paper puts forward an extended role-based access control model (RBAC-TS).The new model details the access control and adds the concepts of Time-Control and Sequence-Control, based on the former RBAC model. The paper gives the theoretical model, and the model has been applied in specific systems.