A group evaluation method for supplier selection based on interval type-2 fuzzy TOPSIS method

Supplier assessment has been a vital issue of strategic importance in supply chain. It helps to reduce operating cost, improve competitiveness and develop business opportunities. However, supplier selection is usually complex unstructured activity, involves the consideration various characteristics simultaneously such as large number alternatives, multiple criteria involved evaluation process well group experts with diverse backgrounds. This study intends propose framework using interval type-2 fuzzy (IT2F) TOPSIS method for suitable suppliers an imprecise environment Indian spare parts manufacturing company. Seven important are considered evaluating suppliers. A practical analysis carried out data collected from set five prospective The major influencing factors case company found be price product, technological capability, relationship closeness, conformance quality experience supplier.