Research and implement on the layout method of bom-based federation

In the HLA-based distributed simulation system, the traditional federates exist as a single program application module, therefore, federates canpsilat be extensible flexibly. By the method of BOM, the federate composed of the reusable simulation model components can be customized and is scalable. However, in fact, the component-based federate can not be extended randomly, and the scale can not be extended infinitely. Usually itpsilas restricted by some factors, such as the performance of the operating system. So that itpsilas useful to have a rational layout of the federation before itpsilas generated. In this paper, there are two methods to be presented in detail: the stepwise incremental layout and the template-based layout. On the base of that two methods, the federation layout tool has been designed and implemented. Finally, the examples are given to describe the process of the federation layout. And the methods of the layout are proved to be feasible in practice.