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Using ontology-based methods for implementing role-based access control in cooperative systems

The issue of security of data becomes very critical due to the federated databases that cooperative systems integrate. In this paper, we describe a role-based access control (RBAC) mechanism that can be applied to collaborative project organizations, and which uses ontology-based methods for its implementation. This eases the process of making modifications. It also brings about standardization, which is cornerstone for portability.
 We test and evaluate this approach in an implementation of a data-management system for proteomic experiment data.
 The primary aim of this study is, firstly, to make use of an upcoming and potentially standard technology and apply it to the domain of database security.
 Our second aim is to validate the hypothesis that such a method can be effectively used in a real-world cooperative system.