The simulation can be considered as a wide range of methods and techniques aimed at imitation and reproduction of the behavior of real systems, usually on a computer. It uses mathematical models of the systems analyzed. The purpose of building a simulation model is to experiment with it rather than experimenting with the real system (too expensive, there is no ethical, etc..). The information obtained from the execution of the simulation model is used to make decisions concerning the real system. Furthermore, the simulation model allows, through the definition of scenarios, answering questions such as what would happen if ...?.

Optimization with simulation

The simulation allows to evaluate different system configurations. However, sometimes you want to find that system configuration leading to optimal system performance. Combining simulation with optimization tools can solve this kind of situations.