Padawan, un modèle multi-échelles pour la simulation orientée interactions

The design of multiagent simulations devoted to complex systems, addresses the issue of modelling behaviors that are involved at different space, time, behavior scales, each one being relevant to represent a feature of the phenomenon. We propose here a generic formalism intented to represent multiple environments, endowed with their own spatiotemporal scales and with behavioral rules for the agents they contain. In addition, an environment can be nested inside an agent, which itself is situated in another environment, etc. This uniform representation is made possible through the interaction-oriented approach for the design of agent simulations (IODA), which clearly separates agents from interactions from the modelling to the code. We also explain the implementation of this approach and give some concrete examples.