Performance analysis of flexible workcentres using multiqueue models

We construct a multiqueue model of high fidelity for detailed performance evaluation of flexible machine centres. These models permit one to represent part type specific demand, processing, and setup time values, and to obtain part type specific performance figures. We show through numerical examples that variabilities in system parameters can induce paradoxical system behaviour. We also present an enhanced model which concerns a workpiece undergoing several operations at the work centre, and its application to evaluate alternative schedul ing strategies.