Layered Approach to Development of OO War Game Models Using DEVS Framework

The DEVS framework of discrete event modeling is known to be compatible with the object-oriented (OO) world view. This paper proposes a methodology for the OO development of war game models within the framework. The methodology develops war game models at two layers: a discrete event system (DES) layer and an object model (OM) layer. Within the methodology the DES layer represents abstract behavior of an object using the DEVS formalism; the OM layer represents detailed behavior of the same object using UML. The modeling at the DES layer and the OM layer are mainly responsible for M&S experts and domain experts, respectively. The models development is a co-modeling process in which M&S experts and domain experts work concurrently at different abstraction layers for identical objects in a co-operative manner. The proposed approach would be most effective for modeling systems in which M&S experts do not know domain knowledge in details, such as war game modeling.