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根據Griffin(1997)所述，任何一個企業的起點都是成功地將一項新產品上市開始，而為了維持企業長期的獲利，企業必須持續開發及商業化其他成功的商品，或是至少也應該改良現有產品使其更符合顧客的需要。而上述這些行動都是屬於新產品設計與開發管理。由此可知，新產品設計開發與管理的重要性，不僅影響企業當下的競爭能力，更是關係企業長期的獲利能力，顯然新產品的設計開發與管理對於企業永續的生存發展十分重要。有鑒於此，本研究乃依循此重要觀念而進行，本研究乃從新產品開發的管理行動、個案公司對新產品開發的管理現況、未來管理模式與機制等三方向進行分析，以期益於個案公司新產品設計開發的管理績效與整體營運成長之目的。除此，本研究亦期經由本個案公司的深入探討，可提供學術研究與企業實務相關的參考，而利於光學產業與新產品設計開發與管理的研究領域之發展。

abstract: In the three phases of the engineering design process (conceptual design, embodiment design and detailed design), traditional reliability information is scarce. However, there are different sources of information that provide reliability inputs while designing a new product. This research considered these sources to be further analyzed: reliability information from similar existing products denominated as parents, elicited experts' opinions, initial testing and the customer voice for creating design requirements. These sources were integrated with three novels approaches to produce reliability insights in the engineering design process, all under the Design for Reliability (DFR) philosophy. Firstly, an enhanced parenting process to assess reliability was presented. Using reliability information from parents it was possible to create a failure structure (parent matrix) to be compared against the new product. Then, expert opinions were elicited to provide the effects of the new design changes (parent factor). Combining those two elements resulted in a reliability assessment in early design process. Extending this approach into the conceptual design phase, a methodology was created to obtain a graphical reliability insight of a new product's concept. The approach can be summarized by three sequential steps: functional analysis, cognitive maps and Bayesian networks. These tools integrated the available information, created a graphical representation of the concept and provided quantitative reliability assessments. Lastly, to optimize resources when product testing is viable (e.g., detailed design) a type of accelerated life testing was recommended: the accelerated degradation tests. The potential for robust design engineering for this type of test was exploited. Then, robust design was achieved by setting the design factors at some levels such that the impact of stress factor variation on the degradation rate can be minimized. Finally, to validate the proposed approaches and methods, different case studies were presented. / Dissertation/Thesis / Doctoral Dissertation Industrial Engineering 2014