Some results from the entity/relationship multilevel secure DBMS project
George E. Gajnak · 2003
A multilevel secure version of the entity/relationship (E/R) data model has been developed. Its multilevel secure properties are based on three principles: the granularity principle, the dependency principle, and the determinacy principle. These three principles are proposed as fundamental to the design of multilevel secure data models and databases. A comparison of the multilevel E/R model and the SeaView multilevel relational data model reveals that the SeaView model violates determinacy.>