Testing and Evaluating are key to the successful development of an acquisition program. Operational Testing during the development phases of the acquisition process is the most difficult to accomplish. This is so because it requires that a system be nearly complete before you can conduct testing. Computer Modeling and Simulation of a proposed program is one way to achieve early operational test requirements. In this project, I will show how modeling and simulations support test and evaluation. At the conclusion of this paper, I will have given the reader the following: 1) an explanation of how similar programs can benefit from modeling and simulation, 2) an explanation of the current methods of validating models, 3) a discussion on why we should standardize validation methods, and 4) an explanation of how to standardize validation methods.