Team Automata Based Framework for Spatio-Temporal RBAC Model

In this paper a framework called Team Automata (TA) has been introduced for capturing notions like co-ordination, collaboration and cooperation in distributed systems. It consists of component automata, combined in a coordinated way such that they can perform shared actions. Moreover, we consider a Spatio -Temporal Role Based Access Control Model (STRBAC) in the context of the team automata model, it describes the usage of the model and utility for capturing information security structures as well as critical coordination between these structures on the basis of Spatio -Temporal metaphor. In this work, Known access control strategies are given a formal description in terms of synchronization in TA.