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|Type:||Artigo de periódico|
|Title:||W-RBAC - A workflow security model incorporating controlled overriding of constraints|
|Abstract:||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.|
|Editor:||World Scientific Publ Co Pte Ltd|
|Appears in Collections:||Artigos e Materiais de Revistas Científicas - Unicamp|
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