An access control model of collaborative design system

Existing access control models are unable to meet the requirements of a collaborative design in distributed network environment perfectly. Based on the character of collaborative design and RBAC model, a new model named message-driven access control model (MDACM) is established. In this model, the security problem that induced by distribution and dynamic of collaboration design was resolved, which through the permission express by message entity and integrating message entity and filtering rule using static configuration modth to control dynamic resources. Moreover, the workflow control set is introduced into the model and affect message entity to support the workflow process management of collaborative design, and a application case was given to reveal the effectiveness of the model.