Embedding UML Subset into Object-oriented DEVS Modeling Process

The DEVS formalism supports modeling of discrete event systems in a hierarchical, modular manner based on the object-oriented world view. System modeling requires not only understanding of modeling framework but also domain kno-wledge of the system. Therefore, successful modeling may need a means to represent a system which is understandable to both domain experts and M&S experts. This paper propo-ses an employment of a UML(Unified Modeling Language) subset as such a means at a front end of the DEVS modeling process. Thus, the UML subset specifies behavior of objects in general; DEVS refines such behavior with additional info-rmation which is required for discrete event models. A case study demonstrates effectiveness of the proposed methodol-ogy..