設備使用問題案例分析，作為設備生產依據，是全面品質管理的基本精神，也是設備製造者獲利的關鍵之一。
透過系統思維是破除「見樹不見林」的觀點，全面性考量問題關鍵因素因果關係。本研究案例藉由根本原因分析(root cause analysis)方法，分析個案的設備維修報告與相關資料，再利用紮根理論編碼程序，配合質性研究資料分析軟體(NVivo 8)，初步歸納問題核心。並依陰陽五行模型，簡化成五大範疇及內隱、外顯二面向，形成5x2模型。以實際案例的多寡，搭配雷達圖計算範疇間彼此量化關係，建立「5E質量模型」。
本研究以某國外設備商2009年台灣地區設備案例事故資料為素材，建立案例5E質量模型，該模型由「製造」、「組裝」、「設定」、「應用」、「設計」五大核心範疇構成，藉由模型中兼具「質」與「量」的研判及解析，有助設備製造者發掘製造流程中造成設備問題的範疇及面向，使其於設備設計生產初期，迅速由源頭解決設備問題。

As the basis to continuously improve equipment production, an analysis of case-study data concerning problems during equipment utilization is viewed as the fundamental tenet in total quality management. It also serves as one of the key strategies towards a more profitable equipment production.

Our study was started from the concepts of systems thinking, namely, a problem-solving process to understand how things influence one another within a whole and to identify the determining factors in a complex situation. This approach effectively eliminates the problem of “can't see the forest for the trees”. In this study, the method of root cause analysis can be used to synthesize data and related information from equipment-maintenance cases. Next, the grounded theory is applied with the qualitative data analysis software (N Vivo 8) to make coding to identify the preliminary root causes of the problems. And a Yin-Yang Five Elements Model (5E Model) is introduced to simplify five major categories first. And we continue to discover and review their intrinsic and explicit characteristics as the Yin-Yang base to build up the 5x2 core model. Finally, 5E Quality Model is achieved in term of quantity of the equipment-maintenance cases, accompanied by the quantitative relationship of a radar map calculation.

In this thesis, we analyzed equipment malfunction case-study data in 2009 associated with the utilization in Taiwan of equipment from overseas equipment vendor. Our study constructed a real 5E Quality Model that consists of five major core categories: manufacturing, assembly, setting, application, and design. It provides both qualitative and quantitative judgment and interpretation of root causes. Therefore, the model would help equipment vendor to discover deeply the origin faults and hidden causes of problems in their equipment production process. Our study concluded that it is possible to eliminate the hidden sources of those problems during the initial design and production stages based on the systems thinking methodology and our proposed 5E Model.

[1] 薛俊良，系統思維，匯智出版，2007
[2] Dennis Sherwood，Seeing The Forest For The Trees (a manager’s guide to applying systems thinking)，Nicholas Brealey Publishing，2002
[3] 王俊文，”系統思維下以主題為基礎的知識文件模型”，國立台灣科技大學自動化及控制研究所碩士論文，2007
[4] 林致祥，”壓力衣修改原因分析與品質機能展開應用研究”，國立台灣科技大學工業管理系博士學位論文，2008
[5] Russell Smith，Incredibles_Root Cause Analysis.ppt，San Jose State University CMPE 203，Fall 2009
[6] 張美琪、張秀玲、吳宜珮、蔡斌智、林梅芳，” 運用根本原因分析提升用藥安全案例分享”藥學雜誌，2010
[7] 簡慈彥，”桃園縣消防分隊反應時間延遲分析與探討-使用根本原因分析”，國立中央大學土木工程學系碩士論文，2011
[8] 簡聿成，”紮根理論在科學教育研究上的應用”，紮根理論-APP-EDU.pdf，2000
[9] 郭玉霞，質性研究資料分析：NVivo 8活用寶典，高等教育文化，2009
[10] 齊力、林本炫，紮根理論研究法與資料分析，嘉義大林：南華大學教育社會所，2004
[11] 吳芝儀、廖梅花譯，質性研究入門：紮根理論研究方法，濤石文化，2001
[12] IM Pandey，Case Method for Teaching & Research：Myths & Realities，International Conference on Case Writing 3-4 November 2009
[13] 黃俊明，”領導風格關鍵事例對組織公民行為影響之探討-以海軍某指揮部為例”，國立中山大學公共事務管理研究所碩士在職專班碩士論文，2009。
[14] Personal Brain，http://www.thebrain.com/#-47，2011
[15] NVivo. pdf，http:// www.qsrinternational.com，2008
[16] Lyn Richards，Teach-yourself NVivo 8：the introductory tutorials，2008