The role of polymorphism in class evolution in the DEVS-Scheme environment

The DEVS-Scheme environment is a realization of the DEVS (discrete event system specification) formalism in a Lisp-based object-oriented environment which supports specification of discrete event models in a hierarchical, modular fashion. The author describes how polymorphism can be exploited in the development of model classes within the DEVS-Scheme environment. The development of subclasses of the class 'coupled-models' in DEVS-Scheme, which are suited for simulation modeling for parallel computer systems, is described to show the role of polymorphism.<
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