摘要:AbstractParticipatory Planning Process (PPP) is a one of high complexity. Complexity Science has lead scientists to understand how complex systems and phenomena work, and how to deduce solutions from natural and biological complexity. Complexity theory is the interaction of its three roots; Cybernetics, System Dynamics and General System's theory (Abraham, 2002). Modeling has been an effective tool used to understand, simplify, predict, explain and control complex phenomena in various fields of science and knowledge. The research presents a Multi agent Model (MAM) for the PPP. MAM has proven to be an effective approach to untangle PPP complexity (information, social and planning complexities), thanks to its high de-compositional capability and its powerful means to surmount the collaboration network among agents.