使用性測試在產品開發階段時就應扮演重要的角色，因其能找出不良與不便的設計問題，進而檢討並改善。然而，很少有針對產品在雛型時期即導入使用性測試的研究。因此，根據產品的特性，本研究將客觀和主觀指標整合成使用性測試方法，針對產品雛型進行評估，以更深入更全面的了解使用者對產品使用性的接受程度，期能讓產品在進入市場時就具有最佳的使用性。而本研究為了探究使用性測試方法在產品雛型期所能發揮之成效，故將整合的使用性測試方法針對三個產品雛型執行檢測。首先，本研究重新設計一款能提供給台灣人甚至於所有人使用的DAISY雛型機，並設計一使用性測試實驗進行測試。實驗結果證實，DAISY雛型機具有最快的操作時間，最少操作錯誤，以及最低的心智負荷。研究結果提供給下一代DAISY播放機的開發商，供其開發出讓使用者能輕易上手之DAISY播放機。另外，對於視障生而言，常常在數學課程和數學考試中感到挫折，最後就會放棄數學這門課程。因此，本研究提出一個基於DAISY標準製做的電子教科書，所設計的新數學教學及學習方式，同時建立使用性測試實驗進行評估，研究結果顯示使用DAISY電子教科書之數位學習方式對視障生的數學學習確有明顯助益。同時，隨著國內健康管理系統的市場越來越受到歡迎，本研究根據文獻整合及應用使用性問卷，並藉由使用性測試的實驗，評估一套健康管理雛型系統。根據實驗結果，提供改善實際的健康管理產品的使用性的建議，讓產品在進入市場之前就有較佳的使用性。在學術貢獻上，本研究整合的使用性測試方法，可以應用在未來產品設計及開發的相關學術研究中；在實務貢獻上，本研究致力於將使用性測試方法加入於產品雛型開發過程。研究結果顯示，整合的使用性測試方法確實能幫助產品雛型改設計及改善，有助於讓新產品更加的舒適及易用，更能貼近使用者的需求。

Usability testing can evaluate product performance and improve the usability of new product prototype. However, various types of products need different usability testing methods during development process. According to the product attribute, this dissertation integrates usability testing methods that incorporate the objective and subjective metrics to evaluate new product prototypes comprehensively before launching to the market. Three new product prototypes are utilized to verify these usability testing methods at product design stage. Firstly, usability testing experiment is conducted to improve the performance of new DAISY plyer prototype. Results and findings have allowed us to generate suggestions for developing the next generation DAISY players for impaired people, especially for Chinese audience. In addition, this dissertation presents a new learning approach based on the DAISY e-textbooks, and conducts usability testing to evaluate the learning effects. Results show that the new approach effectively improved visually impaired students’ mathematics proficiency. Finally, this dissertation integrates and applies usability metrics to evaluate a health management product prototype. Based the results, usability of a new product prototypes are improved before it entered the market. Academically, this dissertation integrates the objective and subjective metrics as usability testing methods. Practically, this dissertation is actually benefiting a new product prototype to be more comfortable and suitable for use.

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