Role-Based Access Control ofCollaborative Design System s

The roles were analyzed in terms of their characteristics in the access control of collaborative design systems, and their granularity were determined. The technique of role-based access control (RBAC) and session function provided by JSP (Java serverpages) were used to realize an access control system. The access control system was applied in a prototype system of collaborative design. The trial results show that the proposed system satisfies the requirementofcollaborative design system.