A structured DEVS model representation based on extended structured modeling

Developing a simulation model needs lots of costs. If the model elements can be reused in newly developed models of the same physical system, the modeling costs will be reduced. Traditional DEVS model representations depend on programming languages. A modeler is difficult to identify the DEVS semantics of model elements, which limits the reuse of existing models. In this paper, the structured modeling technology is used to represent DEVS models. A DEVS model is represented as a structured model. An atomic model can be represented as a genus graph and a modular tree, and a coupled model can be represented as elemental detailed tables. Based on the visual representation, models can be stored, maintained and reused easily. Two cases for the application of structured DEVS model representation are also presented.