. The article outlines the motivation and requirement for a new flexible authorisation model that addresses the needs of … information sharing. It proposes that a flexible and scalable authorisation model must allow an explicit specification of the …

problems formally studied in the field of game theory. It proposes a game theoretic authorisation model that can ensure users …? potential misuse of a resource is explicitly considered while making an authorisation decision. The resulting authorisation … model is dynamic in the sense that its access decisions vary according to the changes in explicit factors that influence the …