Maryam Tabasi - M.Sc. Student of Industrial and Mechanical Engineering,Islamic Azad University, Qazvin branch,Qazvin, Iran
Hasan Haleh - Assistant Professor of Industrial and Mechanical Engineering,Islamic Azad University, Qazvin branch,Qazvin, Iran
Ramin Mostmand - M.Sc. Student of Management, Science and Research branch,Islamic Azad University, Save branch,Save, Iran

DEA (Data Envelopment Analysis) is a model for ranking Decision Making Units, which uses some inputs and outputs. If the number of inputs or outputs versus thenumber of DMUs is great, DEA can not rank truly. In this paper we first decrease them by SIR (Superiority and Inferiority Ranking) method which is one of the Multiple Criteria Decision Making methods,and then we use DEA to rank the Decision Making Units. Part ١ is introduction, part ٢ is literature review, in part ٣ we present the method, part is numerical Example and the last part is conclusion.

Performance Evaluation, DEA, SIR,MCDM