At SRC, we develop sophisticated models that accurately reflect the design/details of a system. Applying tools, such as MATLAB, SIMULINK, and OpNet, we provide support for live simulation, virtual simulation, and constructive modeling or simulation. Our efforts span the spectrum of modeling and simulation from developing and evaluating the outputs of simulated people operating simulated systems, through real people operating simulated systems, to real people operating real systems. This process provides a view into the operations of a proposed system under varied conditions to better support our clients' acquisition strategy.