A Model of Task-Role Based Access Control and Its Application
Yang Ji-wen · Computer Technology and Development · 2006
The research work of RBAC(role-based access control) and TBAC(task-based access control) is greatly emphasized in recent years.This paper compares the characteristics and applicability spectrum of some recent models.To the deficiency of the existing model,in order to improve the security,compatibility and practicability of application systems,through combining the advantages of RBAC and TBAC model,a new-type model,T-RBAC(task-role based access control),is discussed.The configuration and characteristics of the model is described.The support of least privilege,separation of duties,data abstraction and roles hierarchies in the model is explained.An application of the model in computer supported cooperative system and the main goal of future research is presented.