E-business workflow security architecture based on UCON

Based on the analysis of various access control models, an E-business workflow management system based on UCON is proposed. In order to achieve the security of access control, the UCONabc model, the RBAC access control model and the reference monitor are put into the workflow management system. For each access request, according to subject properties, roles, object properties, operation, obligation, as well as condition, the access control system makes judgments whether it has access permission or not. Before access, in access, or after access, the access control system renews the properties of the subject and the object for enhancing the robustness of the system greatly.