Access Control Mechanisms Graph Model Metadata CASE-Technology
Institute of Information Theories and Applications FOI ITHEA
All information systems have to be protected. As the number of information objects and the number of
users increase the task of information system’s protection becomes more difficult. One of the most difficult
problems is access rights assignment. This paper describes the graph model of access rights inheritance. This
model takes into account relations and dependences between different objects and between different users. The
model can be implemented in the information systems controlled by the metadata, describing information objects
and connections between them, such as the systems based on CASE-technology METAS.