Research On Raw Material Supplier Selection Of Y Company Based On MAGDM And Opinion Dynamics

With increasingly severe competition in market environment,the development of all industries is facing a major test.In order for manufacturing enterprises to meet the diversified needs of users with high efficiency and quality,and continue to maintain their steady development trend,self-promotion alone is not enough.Raw material suppliers are the upstream manufacturers of manufacturing enterprises,thus establishing harmonious and favorable cooperation with them is essential to improve product quality,speed up response and realize flexible production.Y company is a wellknown manufacturer for optical parts and products at home and abroad.It adheres to the strategy of famous supporting role and strives to build a world-renowned optoelectronic company.High-quality and stable raw material supply has become an urgent demand of Y company;thus,it is quite necessary to make scientific and effective decision for raw material supplier.By studying the application cases of domestic and foreign enterprises in supplier selection and combining with the current situation of Y Company,supplier selection problems is considered as a multiple attribute group decision making(MAGDM)problem.In view of the facts that the supplier evaluation system of Y company is old and inflexible,with excessive emphasis on low price and product quality,which makes it less flexible to adapt to the market,index weighting should be adopted to make the evaluation system flexible.Secondly,despite the opinions of DMs are dynamically evolved,the traditional MAGDM are always relying on the data acquired at a static decision-making time point.Therefore,based on the opinion dynamics theory,this thesis further expands the hypothesis of ‘bounded confidence’ and an unsupervised opinion dynamics model is embodied proposed to simulate the dynamic interaction behavior of decision-makers.Finally,it is difficult for enterprises to reserve enough time for decision-makers to discuss and modify while making supplier selection decisions,which has a certain impact on the accuracy of the decision.Hence,this thesis develops a novel MAGDM method considering opinion dynamics,which employs the unsupervised opinion dynamics model and TOPSIS as main framework,aiming to tackle these problems from the perspective of information emendation.In this way,it can not only save time cost,but also obtain dynamically updated and truer evaluation information.The case study shows that the proposed MAGDM method can fully reflect the will of decision-makers,the obtained decision results are scientific,and the selected suppliers are reasonable.Theoretically,from the analysis of the problem to the expression of information,and then to the establishment and solution,this thesis formed a set of systematic processes,which provides guidance and reference for dealing with raw material suppliers selection,especially for enterprises that product variety,speedto-market.Practically,it can effectively reduce the complexity of supplier selection process,and meet the actual needs of enterprises.There are 18 figures,15 tables and 94 references in this thesis.