عنوان مقاله [English]
Many studies have been done about decreasing or even eliminating of wastes such as extra inventory since lean concept appeared. Although these studies have not taken into account seriously expected reliability. So in this paper, a MODM model has developed by conflict of these subjects. They are decreasing wastes and increasing maintenance system reliability. Wastes that have been decreased are maintenance requirements (i.e. labor, spare parts, reserve system and productive maintenance activities) and maintenance system reliability that has been increased is a function of maintenance requirements. A set of SAIPA2 data has been used to running the case study and test the effectiveness and the efficiency of the proposed model.