hamed shakerian - ph.d. student, department of industrial management, tabriz branch, islamic azad university, tabriz, iran

in recent years attention has been great emphasis on the importance of supplier selection. selection and evaluation of suppliers is an important responsibility that must be taken into consideration purchasing managers. critical of the choice of suppliers due to the effects of the elements of the organization s products. suppliers are an integral part of the supply chain and supplier management because they are not part of the organization requiring specialized skills are in negotiating the impact of supplier selection criteria are discussed. the decision to effectively and precisely select a supplier is an important part of production and supply chain management in many companies performed to enhance their organizational performance. according to the importance of this matter we determine the main factors in selecting a supplier using laboratory studies and different literature review and then 10 key index were determined using questionnaire and delphi method using parametric t- test. after all, these indexes were categorized with an acceptable convergence and formed a dematel questionnaire and distributed between 20 people and then the relationship between these indexes and the effectiveness of the supplier selection factors were analyzed using dematel method. finally, we determined that a more effective understanding of market imbalances and improve the quality of higher unaffected.

dematel, developing supplier selection criteria, evaluation of suppliers, supply chain