A methodology for building agent-base simulations of common-pool resources management: from a conceptual model designed with UML to its implementation in CORMAS

Le Page Christophe, Bommel Pierre. 2005. A methodology for building agent-base simulations of common-pool resources management: from a conceptual model designed with UML to its implementation in CORMAS. In : Companion modeling and multi-agent systems for integrated natural resource management in Asia. Bousquet François (ed.), Trébuil Guy (ed.), Hardy Bill (ed.). CIRAD, IRRI. Metro Manila : IRRI, 327-349. ISBN 971-22-0208-9

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Résumé : Since 1995, our team has been developing a simulation platform called CORMAS (common-pool resources and multi-agent systems). It provides facilities to build and analyze agent-based models (ABMs) that represent ecosystems where various human activities compete for the use of natural resources. Few agent-based simulations can be mathematically proven, but they can be analyzed inductively. It is therefore important that simulations be replicated before they are accepted as correct. To tackle this thorny issue of ABM replication, we believe that, during the design process, a careful representation of the conceptual model is paramount. In this paper, we advocate using UML (unified modeling language), which is a formal language to describe systems using the object oriented paradigm. An archetypical agroforestry system is presented here, and serves as an example to design a very simple model dealing with common-pool resources management. Different types of UML diagrams are also introduced to describe the static structure of the model, as well as that of the dynamic processes. Adaptation of these diagrams for implementation using the CORMAS platform is detailed. Then, a simple simulation scenario is presented to illustrate how it is done in CORMAS, and a sensitivity analysis on one parameter of the model is conducted.

Mots-clés Agrovoc : gestion des ressources, participation sociale, modèle, modèle de simulation, modélisation

Mots-clés complémentaires : Système multiagents, Modélisation d'accompagnement

Classification Agris : U10 - Informatique, mathématiques et statistiques
P01 - Conservation de la nature et ressources foncières
E20 - Organisation, administration et gestion des entreprises ou exploitations agricoles

Champ stratégique Cirad : Axe 6 (2005-2013) - Agriculture, environnement, nature et sociétés

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