Résumé
This paper is presenting a specific association of a Role Playing Game and an Agent Based Model aiming at dealing with a large range of time scales. Driving people to think over long term issues is required for sustainable use of natural resources. This long term thinking should then take into account its necessary adaptation on a short time scale, which may induce as feedback some revision of the long term strategy. This raises the necessity for tools able to tackle these various time scales and connect them in both ways. Similarity of architecture between computerized Agent Based Models and Role Playing Games makes them easy to associate in a hybrid tool, which makes a good candidate for meeting this requirement. The proposition of this paper to deal with this issue of time scale diversity is to allocate the representation of short time scales to computerized ABM and the long ones to RPG, while keeping the same static structural conceptual model, shared as a common root by both. This synergy is tested and illustrated with an example for a case study of water sharing in South of France. The tool developed, PIEPLUE is proposing an interactive setting dealing with time steps from day to year and was designed with a dialogue support purpose