Modelling is primarily modelling something. The description of the concepts, their structure and their relationships is made possible through ontologies in which the concepts are annotated by their dynamics.
A model is made of concrete individuals structured by links of which descriptions are using the concepts defined in the conceptual model. Aconcrete model is a base for the initial state of the simulation.
For simulation, one must define how to parameterize and to visualize the simulation model. The possibility to define control panels is offered.
Once everything has been properly defined, one has just to run simulations to produce the results depending on the parameter values.