3.4.6 Modeling and Simulation
Properly used, models and simulations can reduce time, resources, and acquisition risk and may increase the quality of the systems being developed. Users of these models and simulations must have a good understanding of their capabilities and limitations and their applicability to the issues being addressed.
From a risk perspective, modeling and simulation may be used to develop alternative concepts during system design; predict performance in support of trade-off studies; evaluate system design and support preliminary design reviews during design development; predict system performance and supplement live tests during testing; examine the military value of the system; determine the impact of design changes; hone requirements; and develop life cycle support requirements and assessments.
However, a key limitation through models and
simulations is that the results are only as accurate and certain as the
quality of the underlying relationships and input data. Blindly believing and
using the output from models and simulations should never be done.