As soon as simulation is mentioned, people think of “3D”. But the two are not fundamentally linked. 3D allows us to simulate an environment and a context, and by “3D” we mean simulating this idea of a “non-real” environment. But a simulation is above all a concept, an interactive creation that can take on many appearances. For example, a behavioural simulation (widely used in what are called use cases) allows us to build a discussion tree (multiple-choice question and answer) that can help us to determine a “behavioural path” in a situation that may be illustrated, textual or indeed 3D.
This implementation makes it possible to simulate several “possible scenarios” for any context, whether human, mechanical or procedural.