W-RBAC - A Workflow Security Model Incorporating Controlled Overriding of Constraints

نویسندگان

  • Jacques Wainer
  • Paulo Barthelmess
  • Akhil Kumar
چکیده

This paper presents a pair of role-based access control models for workflow systems, collectively known as the W-RBAC models. The first of these models, W0-RBAC is based on a framework that couples a powerful RBAC-based permission service and a workflow component with clear separation of concerns for ease of administration of authorizations. The permission service is the focus of the work, providing an expressive logic-based language for the selection of users authorized to perform workflow tasks, with preference ranking. W1-RBAC extends the basic model by incorporating exception handling capabilities through controlled and systematic overriding of constraints.

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عنوان ژورنال:
  • Int. J. Cooperative Inf. Syst.

دوره 12  شماره 

صفحات  -

تاریخ انتشار 2003