Coupling of physical models and social models : multi-modeling and simulation with VLE Couplage de modles physiques et sociaux : multi-modlisation et simulation avec VLE.

With the increasing of complexity, the coupling of models became a need. The modeler needs more and more to build several models within the same model which several aspects of his system which are in interaction. The main objective of the paper is to show how DEVS formalism and its extensions within the VLE application (Virtual Laboratory Environment) can answer this problem. DEVS offers a formal framework for the modeling of system and an operational framework of simulation. The proposed work shows how one can translate the formalisms such as the spatial differential equations or multi-agents models in DEVS. This operation requires a translation of the concepts of theses formalisms to concept of state, event and hierarchisation of the processes. The principle will be illustrated on a system of fire control of forrest by firemen. This system integrate at the same time of the physical aspects of process and process of coordination