ThispaperpresentsanovelheuristicforconstrainedoptimizationofrandomcomputersimulationmodelsinwhichoneofthesimulationoutputsisselectedastheobjectivetobeminimizedwhiletheotheroutputsneedtosatisfyprespeciˉedtargetvaluesBesidesthesimulationoutputsthesimulationinputsmustmeetprespeciˉe