This paper considers optimal supervisory control of probabilistic discrete event systems (PDESs). PDESs are modeled as generators of probabilistic languages. The probabilistic supervisors employed enable/disable events with certain probabilities. We consider the case when there exists no probabilistic supervisor to match the behaviour of a plant to a probabilistic requirements specification. Fi...

performance appraisal systems are affected by organizational social context. social context consists of tow factors, distal variables, and, proximal variables. distal factors include but are not limited to organizational culture, organizational structure, and, values. proximal variable categorize as both process factors and structural factors. in this paper the process factors were examined. th...

Because of their nondeterministic nature of behaviour, the supervisory control of manufacturing systems must be carried out in closed loop. This trait greatly increases the size and complexity of the Discrete-Event System (DES)-based supervisorycontrollers of manufacturing systems. In an attempt t o cope with this complexity, a Hybrid Supervisory Controller HSC) i s proposed. It splits pervisor...

This article is a brief exposure of the process approach to a newly emerging area called "discrete event systems" in control theory and summarizes some of the recent developments in this area. Discrete event systems is an area of research that is developing within the interstices of computer, control and communication sciences. The basic direction of research addresses issues in the analysis an...

Hybrid dynamic systems are of major research interest nowadays due to their use as models in many applications in computer science and systems control. One of the major problems in hybrid dynamic systems is establishing their key property of stability, which also is important in controller design. The use of communication networks in supervisory control of distributed control systems introduces...