The mathematical model of multi agent resource conversion processes (RCP) is developed by the means of discrete-event simulation systems and expert systems. Within the framework of mathematical model RCP are defined: production system of the RCP structure, that taking into account conflicts origin. The discrete-event simulation and expert system '' BPsim2 '' is developed on the basis of the multi agent RCP mathematical model. The '' BPsim2 '' system is inculcated on the firms in Ural region (Russia).