The development of architectures for control systems has been an active area of research for at least twenty years. This research has produced many different architectures which use different terminologies and address different issues. In order to analyse existing architectures and to determine issues that must be addressed in defining a new one, a common terminology for discussing architecture...

The SDSD-system offers state-dependent access control in distributed object systems. The system enforces protocols which declare sets of activity sequences as allowed, thereby forbidding any occurence of an activity outside the context of an allowed sequence. In this paper we conceptually extend the SDSD-system by introducing discretionary administration rights for controlling the activities of...

Using time-scale decomposition, we develop approximations to evaluate the performance of an admission control strategy for integrated services in a single UMTS radio cell. Simulation results suggest that the performance is almost insensitive to traffic parameter distributions, and is well estimated by our proposed approximations.

In the food industry, regulations support companies to specify what needs to be done to minimize the risks of processing, trade and consumption of inferior food products. Complying with regulations protects companies from expensive and negative perceived product recalls, sanctions and financial penalties. A compliant manufacturing process requires a process design that conforms to legal require...