„In learning about complex systems (complexity of details and dynamic complexity), simulation by its ability to manipulate space-time is the only tool that allows to grasp and understand cause and effect relationships distant in time and in space and related by many feedback (dynamic complexity)”.        Professor Czesław Cempel in book: Modern issues of methodology and research philosophy. (org. Nowoczesne zagadnienia metodologii i filozofii badań. ITEi, Radom 2005)

Simulation is a means to:

represent a system physically and logically
⦁ understand system behavior over space and time, and
⦁ assess possible consequences of actions virtually (and visually).

Experiment with, and test, ideas and alternatives before deciding actions and committing resources. Simulation encourages model-based decision making (using models to make better decisions) .