On the other hand, the problem of weak discrimination power or the lack of discrimination power appears in the case where the number of DMUs under evaluation is insufficient in comparison with the total number of inputs and outputs. For the classical DEA models, this situation often results in the solutions determining several DMUs as efficient. To arrive at a solution for this problem of DEA, the models of super efficiency and cross efficiency approaches have been developed [2, 6, 11]. For all efficient DMUs, the super efficiency concept has been proposed when the number of efficient DMUs is more than one. Andersen and Petersen [2] introduced one of the super efficiency models for ranking efficient DMUs in DEA. Their method enables an extreme efficient unit o to achieve an efficiency score greater than one by removing the pth constraint in the envelopment linear programming formulation.