An architecture for supporting vicarious learning in a distributed environment
Proceedings of the 2004 ACM symposium on Applied computing
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Traditional access control models cannot effectively manage authorization for independent and geographically dispersed information. This drives the research interest in more flexible and efficient access control approaches, in particular role-based access control. This report covers both RBAC subfields 驴 theoretical modelling and practical deployment, provides an introduction and overview of role-based access control appropriate for the emerging world of virtual organisations and remote collaboration. We take a specific application area, distributed collaborative tutoring as pioneered in the MANTCHI project, and show the merits of the RBAC architecture for meeting its security requirements.