Collaboration security for modern information systems

One of the main approaches to accessing heterogeneous data is via the use of a mediation framework. The current problem with mediation systems is that they are viewed as black boxes from the perspective of their clients. As clients enter their data, they are unable to control the access to their data from entities within the mediation system. In this paper we present a solution in the form of a security framework, named Collaboration Security Framework that addresses the needs of all entities, i.e. external clients, mediators or data sources, to have autonomy in applying security policies during collaboration. As a result all entities participating in a collaboration have control over the access to their data by applying local, global and collaboration channel security rules, which can be changed at runtime and that are security model independent.