全球汽車製造市場的競爭，為有效提高新車開發的效率，各家車廠於汽車設計過程中藉由電腦輔助造型（Computer-aided styling, CAS）的整合，在造型前期的設計圖面出現，藉由三維軟體做初步的三維造型曲面，用於前期造型評審、後續細節優化，以及前期整車布置的可行性分析。在汽車開發的整個周期和成本中，造形設計投入的人力成本相對較少，但卻是影響後續整個開發流程與最終量產成品銷量的重要關鍵之一。
電腦輔助設計的優勢在於，能快速並準確的對應設計師表達的概念設計圖與符合工程限制條件，前期造型開發效率提升，進而減省時間開發成本。而汽車數位模型師對於形體的敏感度與空間想像力要求較高，對於不同開發階段所需要的不同技術也較為複雜，除了學習軟體指令的運用，更需要透過大量的練習來累積經驗，而初期正向設計階段，對於形體的拆解更為重要。透過本研究訪問資深汽車數位建模師對於電腦輔助造型於產品開發階段將分建構曲面之思維與軟體介面之運用兩大類，最後加以分析並發掘其差異，期望未來可供相關類型人員參考研究。
透過質性研究方式訪談資深數位設計師並進行實驗驗證，本研究發現：（1）曲面避免三邊建面，否則光影容易出問題。（2）在不同部位建模時，若非為連續曲面，可以將其分界線定義出後製作。軟體介面透過三位資深受測者之個人化介面研究發現：（1）Alias指令眾多，使用者會依照不同模型階段，設定個人化介面。（2）Alias自訂義指令圖示未對應個人化之設定，易在視覺上造成混亂。

In order to effectively improve the efficiency of the new car development in the global automotive market competition, each car factory in the car design process by adopting computer-aided styling (CAS) in the prophase of modelling design surface appear, by 3D software to conduct the preliminary 3D surface shape for early review, subsequent detail optimization modelling, as well as the preliminary feasibility analysis. In the developmental cycle and cost consideration of automobile development, the labor cost of shape design is relatively small, but it is one of the important keys that affect the overall development process and the sales volume of final products.
The advantage of computer-aided design (CAD) lies in that it can quickly and accurately correspond to the conceptual design drawings expressed by designers and meet the engineering constraints, improve the efficiency of early modeling development, and thus save time and development cost. In addition to the application of software instructions, it is also necessary to accumulate experience through a lot of exercises. In the initial positive design stage, it is more important to disassemble the body. In this study, senior automotive digital modelers were interviewed pertinent to the application of computer-aided modeling in the product development stage. Finally, the differences were analyzed and explored.
Through qualitative research, several senior digital designers were interviewed and experimental verification was carried out. The findings of this study were: (1) Avoid three-sided surface construction, or the light and shadow are prone to problems. (2) When modeling at different parts, if it is not a continuous surface, it can be made after defining its dividing line. The results of the software interface study by three experienced participants show that: (1) Alias commands are abundant, and users will set up the personalization interface according to different model stages. (2) Alias custom instruction icon does not correspond to personalization setting, which is easy to cause visual confusion.

1.Au, C. K., & Yuen, M. M. F. （1995). Unified approach to NURBS curve shape modification. Computer-Aided Design.
2.Fynes, B., & De Búrca, S. (2005). The effects of design quality on quality performance. International journal of production economics.
3.Gould, L. S. （1998). What you see in product visualization is what you get. Automotive Manufacturing and Production.
4.Kara, L. B., & Shimada, K. （2007). Sketch-based 3d-shape creation for industrial styling design. IEEE Computer Graphics and Applications.
5.Liem A., Abidin S. Z., & Warell A. （2009). Designers’ perceptions of typical characteristics of form treatment in automobile styling.
6.Tovey, M. （1997). Styling and design: intuition and analysis in industrial design. Design Studies.
7.Watt, A. （2000). 3D computer Integrated Computer-Aided Design in Automotive Development.
8.Westin, S. H. （1998). Computer-aided industrial design. Acm Siggraph Computer Graphics.
9.潘淑滿（2003）。質性研究理論與應用。台北：心理。
10.康家彰（2011）。電腦輔助工業設計師於產品開發扮演之角色探討。未出版之碩士論文，國立台灣科技大學設計系，台北市。
11.鄭宏仁（2013）。Alias設計新視界。碁峰出版。台北。
12.設計之門（2019）。Alias Design 2018 : 絕地高手的設計力覺醒特典 / 設計之門著。深石出版。台北市。
13.魏強、韩懋豪（2009）。Autodesk Alias Studio汽車設計實戰手冊。中國建築工業出版。北京。
14.Autodesk Alias.（2019） http://help.autodesk.com/view/ALIAS/2019/CHS/
15.Dassault Systèmes.（2019）https://blogs.3ds.com/
16.Net Car Show.（2019）https://netcarshow.com
17.Car Body Design.（2019）https://carbodydesign.com
18.Honda.（2019）https://honda.co.jp