- 學位論文
發展混合式多評準決策方法改善TFT-LCD產業之綠色供應商績效
Developing Hybrid MCDM Approaches for Improving the Performance of Green Suppliers in the TFT-LCD Industry
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摘要
近二十年以來，隨著環境保護與企業永續經營意識抬頭，在薄膜電晶體液晶顯示器產業中，綠色供應商評選議題著重在考慮環境準則於評選過程中，並強調薄膜電晶體液晶顯示器製造商如何在有限資源下協助改善其供應商之績效。然而當代綠色供應商評選議題需要進一步思考如何使企業與其供應商維持長期合作關係，藉以提升整體供應鏈之競爭力。本研究目的為發展以優勢排序法為主的混合多評準決策方法，用以評估與改善綠色供應商的績效。綠色供應商評選流程的改善在本研究中分為三階段。在第一階段，本研究依據文獻回顧與個案公司之供應商稽核表單建立階層式決策架構，然後提出一套混合多評準決策方法評估綠色供應商績效，並呈現各部門對於評選過程中持有不同的改善觀點。其次，本研究在第二階段進一步依據影響網路關係圖建立網路決策架構，考慮各準則之影響權重，並導入渴望水準的概念於評估方法，計算各供應商在各個準則的績效值與渴望水準之間的差距。在第三階段，本研究更進一步提出兩項管理指標：(1) 立即改善指標；(2) 追求渴望水準指標，用以協助企業改善其供應商之績效。本研究於此階段所提出的方法可協助薄膜電晶體液晶顯示器製造商與其供應商共同設定長期策略目標，並以網路影響關係圖協助供應商進行改善與追求各準則之績效達到渴望水準。研究結果所呈現出的改善策略除了包括評選結果之外，本研究也針對各供應商的優勢與弱勢進行分析，並依據多元企業功能的層面決定改善方向的優先順序。此外，在綠色供應商評選過程中，本研究發現個案公司的管理者較重視「綠色管理」、「技術」與「組織」層面的績效。本研究進一步以改善該製造商之子供應商績效為目標，研究結果顯示該供應商現階段應立即提出如何提升其研發技術能力之規劃。從長期發展來看，該個案公司應協助其子供應商改善「健康安全」、「綠色產品」、「交期」、「技術能力」、「品質控制」之績效，而子供應商的研發技術能力也會因此進而提升績效。
並列摘要
The awareness of environmental protection/conservation and sustainable development has increased in the last two decades. In the competitive thin film transistor liquid crystal display (TFT-LCD) industry, green supplier evaluation/selection involves environmental criteria in the traditional evaluation process and emphasizes that TFT-LCD manufacturers should improve the performance of their suppliers with limited resources. In addition, the modern green supplier evaluation/selection further focuses on how to maintain long-term relationships between a company and its suppliers. The purpose of this dissertation is to develop a hybrid multiple criteria decision making (MCDM) methods with outranking methods to evaluate and improve the performance of green suppliers in the TFT-LCD industry. The procedure of green supplier evaluation/selection can be divided into three stages. In the first stage, a hierarchy decision framework for green supplier evaluation/selection is developed based on literatures and supplier audit forms provided by an anonymous flat panel display manufacturer in Taiwan. Then, we proposed a hybrid MCDM method to evaluate green suppliers and provided final ranking results and different opinions from each department. In the second stage, the proposed evaluation procedure is as follows: (1) to develop a decision framework by an influential network relation map (INRM); (2) to obtain the influential weights of the criteria; (3) to involve the concept of aspiration levels into the proposed methods; and (4) to evaluate and reduce the gaps of suppliers in each criterion. In the third stage, we further develop two managerial indexes: “immediate improvement degree” and “aspiration level gap” for achieving aspiration levels. Subsequently, the proposed procedure can assist the TFT-LCD manufacturer and its subsidiary to set and improve joint long-term strategic goals for achieving aspiration levels for each criterion based on the INRM. The improvement strategy includes the ranking results as well as the suppliers’ strength/weakness and the improvement priority with integrating multiple business-function perspectives. In the evaluation procedure, the managers place importance on “green management”, “technology” and “organization” aspects. This dissertation examines a subsidiary supplier of the TFT-LCD manufacturer in real-world case, and the results indicate the subsidiary supplier should improve its R&D capability immediately. Then, for the long-term perspective, the TFT-LCD manufacturer may plan to assist its subsidiary to improve the performance of health and safety, green product, delivery, current capability and quality control. Besides, its R&D capability will also subsequently be enhanced.
參考文獻
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