本研究將FMEA與QFD兩種模式整合應用於個案公司配管工程之直管預製工作流程上,找出直管預製工作流程中可能發生之各種失效模式及業主對直管預製工作流程的需求特性,並設計出適當的問卷,調查的結果經過計算後,將FMEA的RPN值與QFD的品質權重指數轉換為最後的流程評比權重值,失效模式的重要性即可依其流程評比權重值的大小進行排序,優先處理重要性較高的失效模式,也可讓現場預製施工人員能於早期發現直管預製流程中所有潛在可能發生之異常現象,如此一來,在直管預製工程的初期就能對可能發生的異常現象加以防範,減少預製施工之損失,進而提高施工品質及降低風險。 個案公司應積極導入FMEA與QFD的工具,以確保良好的配管工程施工品質並滿足業主的需求,應可獲得之成效如:減少機具、物料、人力之成本、降低業主抱怨指數,提高直管預製非破壞檢驗合格率、縮短合約工期、增加施工品質滿意度,對於未來承攬工程案件有所助益。 研究方法除了運用FMEA與QFD方法,亦能使用其他多屬性決策之方法,經由不同之計算方式,其所獲得之最終結果,可能會讓原先使用之FMEA與QFD方法產生數據變化,期望能夠使得未來研究更加客觀。
This research integrates FMEA and QFD and applies them into the straight pipe prefabrication of the piping construction for the case company. This is to investigate the possible failure modes and customer’s requirements for the pipe prefabrication process. The outcome from the appropriately designed questionnaire will be summarized, calculated for the RPN of FMEA and quality weighted index of QFD and adjusted to the process appraisal weights. The importance of these failure modes then can be prioritizing by the value of the process appraisal weights and resolve accordingly. The result can help the pipe prefabrication personnel discover and resolve the defect factors in the pipe prefabrication process in advance, reduce the loss, and improve the construction quality. Case company should actively adopt FMEA and QFD to ensure the quality of piping construction and meet the requirements of customers. After the adoption, case company should have the results of reducing the costs of equipment, materials, and manpower costs, reducing the complaints from the customers, increasing the passing rate of the straight pipe prefabrication X ray inspection, shortening the duration of the construction, increasing satisfaction with the quality of construction, and increasing the opportunity to obtain future construction contract. Other than the use of FMEA and QFD, future research may use other multi-attribute decision making method. Through different calculation methods, the outcome may be different form the one obtained from the FMEA and QFD and thus make it more objective and reliable.