- 學位論文
實體與虛擬原型於產品設計評估之認知差異
Perception Differences in Product Design Evaluation using Physical and Virtual Prototypes
摘要
設計評估為新產品開發過程中的重要階段，主要目的是藉由評估結果修改設計，以滿足顧客與市場需求，創造出更有價值的產品。傳統的設計評估多採用實體形式，其花費成本高且製作時間較長。近來隨著資訊技術的提升，虛擬原型技術逐漸成熟，已被廣泛應用於產品或服務的設計評估。然而評估工作的面向多元，實體與虛擬媒介是否存在評估上的差異，或是對應產生使用者經驗的優劣，過往研究仍欠缺完整的探討。因此本研究透過一系列的認知實驗，比較兩種媒介的效能差異，第一階段實驗探討於物理面、使用面與外觀上之評估正確率，以及各項評估工作的使用者經驗。第二階段則比較虛擬媒介中，整合不同程度的回饋資訊造成的影響。實驗分析結果顯示於大部分的工作上，虛擬媒介的評估正確率較低，且在使用者經驗中的情緒面向與強度較差。於虛擬媒介的回饋資訊中，聲音與動作的回饋皆可改善評估過程的使用者經驗，且越完整的回饋，其表現將越接近實體媒介。本研究以完整面向比較實體與虛擬原型技術的差異，探討評估過程的使用者經驗，結果可作為改善虛擬評估媒介的參考。
並列摘要
Design evaluation is a critical stage in new product development. The main purpose is to revise product designs according to the evaluation result, thus satisfying customer requirements. Traditional design evaluation is usually conducted on real product prototypes, which involves high development costs and lengthy development time. As information technologies progressing, virtual prototyping technologies have recently becomes mature and been applied to design evaluation of various products and services. A design evaluation task needs to be studied from multiple perspectives . It is thus advantageous to understand if and what differences exist in design evaluations based on real and virtual prototypes, especially in the user experience arising during the evaluation process. Detailed studies are still lacking in previous works. Therefore, this research compares the differences between real and virtual prototypes by conducting a series of cognition experiments. In the first part of the experiments, we look into the evaluation correctness on identifying engineering attributes, usability, and product appearances, respectively, between the two means. Another focus is to examine the user experiences in the corresponding evaluation tasks. In the second part, we try to understand how the feedback information of different degrees influences the user experience in evaluating virtual prototypes. The experimental results show that the evaluation correctness based on virtual prototypes is lower than that of real ones in most tasks, and the user experience is worse. Moreover, adding sound or movement feedback in virtual prototypes improves the user experience in the evaluation task based on virtual prototypes, and the more feedback information, the closer to that produced by real prototypes. This work systematically investigates design evaluations based on real and virtual prototypes. The research findings provide good guidelines for improving virtual prototyping technologies.