We present an analysis of the benefits and drawbacks of function and object based models in system specification. Functional models should be used for functional design space expl...
Role Based Access Control is only a subset of the security management and distributed systems management. Yet, the characteristics and use of the role objects in RBAC or Role Base...
When modelling a large and complex system, clarzty of the speczfication becomes an znaportant factor. I n object-oriented specification, the states of individual objects are captu...
Enterprise roles define the duties and responsibilities of the individuals which are assigned to them. This paper introduces a framework for the management of large distributed sy...
In most object-oriented languages and systems, objects must belong to a single most specific class. Relaxing this requirement, also known as role modeling, has been proposed by sev...
Gerti Kappel, Werner Retschitzegger, Wieland Schwi...