Minimizing the supplying cost of leverage items: a mathematical approach
Publish Year: 1390
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJE-24-7_005
تاریخ نمایه سازی: 17 بهمن 1400
Abstract:
In the new competitive environment, selecting and planning of the supply chain is very crucial and involves evaluation of many factors. Different approaches have been applied to assess the supplier/s. Most of these studies are based upon the supplier/s&#۳۹; capabilities. It may be neither rational nor economical to deal with each item via a generic material control system. Furthermore, supplier/s selection not only depends on suppliers&#۳۹; capability, but also depends on the nature and characteristics of the parts. Little attention is given to decisions on the appropriate selecting of supplier/s, and assigning order quantities to them, especially, in case of multiple sources considering their performance and materials’ characteristics. In this paper two models are presented which locate the optimal supplier/s regarding supplier/s&#۳۹; capabilities and materials’ characteristics for leverage items based on references [۱ and ۲]. The first one is a G.P. model which considers constraints of lead-time, quality, demand, supplier/s capacity and budgets in a dynamic condition. The second one considers the problem in a contingent environment and considers criteria with normal distributions. Each model follows by an illustrative numerical example and sensitivity analysis which demonstrate the effectiveness and validation of the model
Keywords:
Supply chain management , Supplier selection , Goal Programming , materials and inventory management , leverage items
Authors
J. Razmi
Industrial Engineering, University of Tehran
A. Keramati
Industrial Engineering, University of Tehran