Abstract
Currently, topics of operations management and supply chain systems have been gaining more interest of researchers. Efficiency in supply chain activities and operations management firstly benefit organisations. One of the main operations in supply chain systems is the collaboration with selected suppliers. Various models have been proposed in terms of supplier evaluation and selection studies. The invention of a new integrated frame for the building of an effective supplier evaluation system is a multi-attribute task that consists of several factors as external and internal variables. This paper delivers a creative integrated model of supplier selection problem using SWARA, QFD and a new MCDM tool called WASPAS. This work considers customer attitudes in the process of supplier evaluation. To give more weight to customer requirements, a new SWARA method has been designed; additionally, QFD and the house of quality matrix have been used to transform customer requirements into the supplier evaluation index. Finally, WASPAS has been used to rate the performance of suppliers and present supplier ranking scores. Application of initiative ways to propose a systematic supplier selection problem has always been encouraged by supply chain managers. This topic has been addressed in this paper as well.
Highlights
Selection of suppliers for a typical supply chain system is an important task and one of the leading decision problems
The fundamental contribution of this paper from the technical viewpoint can be stated as the way to integrate QFD and a new weighting tool called step-wise weight assessment ratio analysis (SWARA), which has some preference of other weighting methods
The proposed model for supplier evaluation has been implemented in the Steel Alborz Company in Iran, which is active in the stainless steel industry
Summary
Selection of suppliers for a typical supply chain system is an important task and one of the leading decision problems. Any stable supplier assessment system must consider the external environment of the whole supply chain and pay attention to the establishment of a clear understanding of customer needs, – their subjective performance requirements. An improvement action is complementary to transit from the traditional approach (economic and general assessment of cost, efficiency, quality, lead time, etc.) to some new era of the supplier selection problem, which for instance highlights buyer satisfaction and the benefit of the stakeholders. In this case, a need for an instrument to connect customer and stakeholder attitudes to relevant supplier criteria is compulsory. To the best of our knowledge, this integration of QFD with SWARA is new to the literature and no research project in this area has proposed it yet
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