Evaluation of interaction messages in trust model within collaborative system

The success of collaborative systems has become necessary due to the important role of these systems as they ensure the continuity of Critical Infrastructures. Among the aspects, enabling the success of collaborative systems is their security against all threats. In this paper, we focus on a new model allowing security and protection of collaborative systems within critical infrastructures. Tr-OrBAC is a combination between the access control and the trust evaluation. The principle is to add a new trust parameter in the security rules generated by OrBAC model. Our goal in this paper is to evaluate the interaction messages between the different actors involved in the collaboration. We will present the existing models, and then we will discuss the steps used to implement our model, using different tools (UML, Eclipse).