In Supply Chain Management (SCM), strengthening partnerships with suppliers is a significant factor for enhancing competitiveness. Hence, firms emphasize on performance evaluation of suppliers. This paper propose a model for measuring the efficiency of multi- supplier and one manufacturer chains (SMCs) using network DEA. This model, also yield a set of intermediate products for suppliers that improve the efficiency of SMCs. The approaches are demonstrated with a numerical example.

The increased purchase of products and services from external suppliers has augmented the dependence of buying firms on the capabilities and performance of their suppliers. so, the implementation of supplier development activities is a need of manufacturing organizations to make long-term relationships with their key supplier to increase supplier capabilities.  This research model introduced six elements of supplier development programs such as information sharing within and between firms, communication methods, top management support, trust between trading partners and supplier quality support and also revealed three major factors of buying firm's performance such as inventory management, product quality improvement and financial performance. Product quality improvement, as a mediator endogenous variable in the purpose model, was also studied and tested. A cross-sectional method was used to gather data from 377 Iranian manufacturing SMEs. The measures and hypotheses were analysed with the help of Structural Equation Modelling (SEM). The research supported the idea that information sharing within firms, communication methods, top management support and trust between trading partners have a positive influence on information sharing between firms. Further, the research conducted the positive effects of information sharing between firms on inventory management and product quality on buying firms. Also, the research showed the positive effect of supplier quality support on product quality improvement and financial performance. In addition, the study conducted also revealed that product quality improvement played a partial mediation effect on supplier quality support and financial performance of manufacturing SMEs.

After termination of vertical integrating era in which the organizations themselves carried out and performed ensuring supply chain activities throaty from its beginning to the end (from ensuring layer to distribution layer and deliverance of clients' productions and services), now the era of organizational outsourcing activities has appeared. Nowadays, measurement and control of the outsourcing activities is one of the managers disturbances. And this has exposed to the experts' style and thoughts because of human's judgment and reasoning and more above all, lack of certainty conditions in marked measurement and this will risk the subject's continuation of outsourcing activities. After the contemplation of accomplished studies related to marked measurement and standards of producers' operation, we have examined existing measurement method in this essay and we present a portion fuzzy control of measurement distinction method according to its operation. At the end regarding the subject importance while doing an empirical study in industry section we'll analyze and assimilate the outcomes.