在全球競爭加劇的趨勢下，產品開發中經常面臨需因應客戶或市場需求做快速進行調整。然而，產品開發過程繁複且充滿許多不確定性，如何在動態環境下進行高效率的細部設計、變更、以及在變更後維持設計品質，將是重要的議題。因此，本研究擬提出一套開發流程及模型，應用於設計需求經常變動的產品，以協助設計人員快速反應產品變更之需求。

本研究以「快拆接頭設計」為例，探討開發過程中，要如何過濾產品開發過程中的這些不確定需求、可能影響因素及設計參數如何在過程中傳遞，並應用多準則決策方法(MCDM)來做需求分析(Requirements Analysis) 、再利用電腦輔助工程(CAE)及田口法(Taguchi methods)建立一套產品開發模型(簡稱為RCT-PD-Model)。最後，本研究分別採用這套RCT-PD-Model與傳統經驗設計方法在快拆接頭設計進行實驗並比較驗證差異，結果證明，工作效率方面，在相同的單位時間下，效率增加了兩倍，而費用支出方面，在相同的工作目標下，總支出則縮減為原來的46%。因此使用RCT-PD-Model用於設計開發流程，在效率及費用支出上均成效顯著，於實務產品開發應用及學術研究上均有所助益。

Under the trend of increasing global competition, product development often faces the need to make rapid adjustments in adapt to customer or market demand. However, the product development process is complicated and full of many uncertainties. How to design and change the details in a dynamic environment and maintain the design quality after the change is an important issue. Therefore, this study aims to develop a set of processes and models that can be used to design products with frequently changing requirements, as well as to assist designers in quickly responding to that kind product development environment.

This study uses the “bayonet head design” as an example to discuss how to filter these uncertain requirements, possible influencing factors, and how the design parameters are passed during the development process, as well as in combination with “Requirement analysis” by multi-criteria decision-making method (MCDM), Computer Aided Engineering (CAE), Taguchi experiment process to establish a product development model (Abbreviated as RCT-PD-Model). Finally, the RCT-PD-Model and traditional experience design methods were used to conduct experiments respectively on the bayonet head design and verified the differences, as the results shown that RCT-PD-Model can significantly improve the development efficiency and reduce cost, it is also helpful to be applied during the practical products development process and academic research.

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