Model Management and Execution in DEVS Unified Process

Abstract Any modeling and simulation (M&S) endeavor comprise of two activities: modeling and simulation. Though each is an independent discipline in itself, often M&S is taken together as an integrated approach executed through software engineering practices. If not developed through a component-based methodology, it may result in various problems at later stages of any large scale M&S effort, for example, maintenance, integration, augmentation, verification, and validation. In this chapter, we describe the model engineering process for projects that subscribe to discrete-event world-view. We present model management from various perspectives as described in DEVS Unified Process in Mittal and Risco-Martin's earlier work. After specification of model, we then focus on the transparent execution of models in a net-centric system of systems environment and present state of the art in model and simulation interoperability within DUNIP.