System Theoretic Foundations of Modelling and Simulation
Considering a model to be a system specification, this chapter reviews the hierarchy of levels at which a system can be specified and the formalisms in which the specification can be done. Such an approach provides a unification of modelling and simulation concepts along both behavior-structure and discrete-continuous lines. Throughout its exposition we point out the utility of the framework for addressing such issues as correctness of simulation programs, valid simplification of models, transformation of models from one formalism to another, and attaining higher levels of model validity.
KeywordsTransition Function Association Mapping System Specification Time Base Discrete Time System
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