انتخاب تأمینکننده با استفاده از روش ترکیبی مبتنی بر محاسبۀ ارزش در
Purpose: This research aims to propose an integrative approach for selecting suppliers for Nasr Niroo Engineering Company in Yazd.The proposed model applies value engineering in a type-2 fuzzy environment. Design/methodology/approach: First, the purchase value has been calculated for each supplier using type-2 fuzzy data and the experts' opinions. . …