Role Based Collaboration Authorizing by Using Ontology

In this article, we propose a method to implement the management of the role based access controlling by using layered ontology. By modeling elements of collaboration system, we can formally and explicitly describe the relationships and rules of collaboration activity. We can clearly and easily define the authentication by managing role based access controlling models. By reasoning based on description logic on ontology models, we can discover the immediate and implicit relationship. In this way we make authentication of collaboration system more flexible and scalable.