本研究主要探討使用性評估應用於電子商務網站，並以綺妍美妍藥妝網站作為研究個案，藉此個案來了解執行使用性評估的成效以及使用性評估的操作方式。透過使用性測試、回溯放聲思考法、系統使用性量表、觀察與深度訪談法獲得受試者資料，進一步了解不同背景組合使用者對使用性問題之認知差異，並找出現有網站之使用性問題，針對問題修正IWEE網站後執行後測，了解使用性評估是否具有成效。此一使用性評估執行模式，提供欲針對電子商務網站進行使用性評估之研究者作為參考。
本研究以綺妍美妍藥妝網站作為研究個案，所得到研究結果如下：一、發掘了IWEE網站的各項使用性問題，包含標籤命名不妥與認知差異、檢索系統設計不良、網頁介面設計不佳、系統功能不良等皆影響網站使用性。二、不同背景組合的消費者，包括會員資格與否以及網購頻率差異的組合，對於IWEE網站使用性認知上具有差異。三、經由評估發現使用性問題後改進原始網站，在進行後測後，發現受試者在使用修正過網站測試任務完成時間較原始網站的時間大幅降低，具有顯著差異，且後測受測者均能完成任務，顯示IWEE網站進行使用性評估後能提升使用者使用效率與滿意度。
最後根據研究結果提出以下建議：
1. 電子商務網站的設計應以使用者為中心，網站成功來自於顧客滿意，了解使用者需求與重視的部份，方能提昇使用者滿意度與促進商品銷售。
2. 電子商務網站可嘗試透過使用者導向之使用性評估方法，針對現有網站發掘使用性問題，進而修正改善，增加網站好用性。

The aim of this case study is to explore the applications of usability evaluation for e-commerce sites. In order to understand the real-world applications and effectiveness of usability evaluation on helping improving e-commerce sites, an evaluation system was created and implemented on iWEE, an online cosmeceutical shop. By Using task oriented usability testing, think aloud method, system usability scale, observation and in-depth interview to acpuire data. We then told the subjects apart by backgrounds and cognition discrepancy toward usability problems and found out existing issues regarding the design of iWEE website. Discovering website usability problem of IWEE website, then revise the website usability problem and re-evaluation.
Below findings were identified through the process:
1. Existing flaws in iWEE including: poor labeling, inadequate search engine, difficult UI and lack of critical functions,and any of them effect website usability.
2. The combination of whether if the user is a frequent online shopper or an existing member of iWEE can make great difference on the test results.
3. The result of re-evaluation shows the user by using revised website would be Significant to reduce in use of time ,and system usability satisfaction of revised website is obviously better than original one and all the users can sussessfully finish the tasks.

Suggestions we have from this study to all e-commerce practitioners as conclusion:
1. User-centred design methods should be followed. Customers’ satisfactions are the success factor for e-commerce web sites. By identifying customers’ specific needs and habit and creating the shopping environment accordingly, increase on customers’ satisfactions and sales amount are guaranteed.
2. User oriented usability evaluation method can be applied on e-commerce website to find out website usability problems , By the process of improving problems, enhances the degree of usability.

Beyer, H., & Holtzblatt, K. (1998). Contextual design : defining customer-centered systems. San Francisco: Morgan Kaufmann.
Butler, P., & Peppard, J. (1998). Consumer Purchasing on the Internet: Processes and Prospects. European management Journal 16(5), 600-610.
Cockton, G., Woolrych, A., Hall, L., & Hindmarch, M. (2003). Changing Analysts’ Tunes: the Surprising Impact of a New Instrument for Usability Inspection Method Assessment. People and Computers XVII: Proceedings of HCI’03, 145-161.
Deaton, M. (2002). Sorting techniques for user-centered information design Retrieved on June 12, 2008, from http://www.mmdeaton.com/SortingTechniquesforInformationDesign.pdf
Dumas, J. S., & Redish, J. C. (1993). A practical guide to usability testing. Norwood. NJ: Ablex Publishing Corporation.
Gefen, D. (2002). Customer loyalty in e-commerce Journal of the Association of Information Systems
3, 319-340.
Genuis, S. K. (2004). Web site usability testing: A critical tool for libraries. Feliciter, 50, 161-164.
Hackos, J. T., & Redish, J. C. (1998). User and Task Analysis for Interface Design. New York: Wiley.
Jaspers, M. W. M., Steen, T., Bos, C. V. D., & Geenen, M. (2004). The Think Aloud Method: a guide to user interface design. International Journal of Medical Informatics, 73, 781-795.
Jeng, J. (2005). Usability Assessment of Academic Digital Library: Effectiveness, Efficiency, Satisfaction, and Learnability. Libri, 55, 96-121.
Jupitermedia (2006). Retrieved on Auguest 15, 2009, from http://www.jupitermedia.com
Kligman, A. (2005). The future of cosmeceuticals: An interview with Albert Kligman MD, PhD. Dermatol Surg, 31(7), 890-891.
Laudon, K. C., & Traver, C. G. (2002). E-commerce: Business, technology, society. Boston Addison Wesley.
Lee, Y. S., Hong, S. W., Smith-Jackson, T. L., Nussbaum, M. A., & Tomioka, K. (2006). Systematic evaluation methodology for cell phone user interfaces. Interacting with Computers, 18, 304-325.
Liu , C., & Arnett, K. P. (2000). Exploring the factors associated with web sites success in the context of electronic commerce. Information & Management, 38(1), 23-33.
Mauer, D., & Warfel, T. (2004). Card sorting: a defintive guide Retrieved on June 12, 2008, from http://www.boxesandarrows.com/view/card_sorting_a_definitive_guide
Moon, J. W., & Kim, Y. G. (2001). Extending the TAM for a World-Wide-Web Context. Information and Managemenr, 38, 217-230.
Nielsen, J. (1993). Usability Engineering. San Francisco: Morgan Kaufmann.
Nielsen, J. (2000). Designing Web Usability. New york: New Rider Publishing.
Nielsen, J. (2000). Why You Only Need to Test With 5 Users Retrieved on February 15, 2008, from http://www.useit.com/alertbox/20000319.html
Pace, A. K. (2003). The Usability Toolbox Retrieved June, 11, 2008, from http://www.infotoday.com/cilmag/jan03/pace.shtml
Palmer, J. W. (2002). Web Site Usability, Design, and Performance Metrics. Information Systems Research, 13(2), 151-167.
Preece, J. (1993). A guide to usability: human factor in computing. Wokingman: Addison-Wesley.
Rangamathan, C., & Ganapathy, S. (2002). Key Dimensions of business-to-consumer web sites. Information & Management, 39, 457-465.
Rosson, M. B., & Carroll, J. M. (2002). Usability Engineering: Scenarion-based Development of Human Computer Interaction. San Franciso: Morgan Kaufmann.
Rubin, J. (1994). Handbook of Usability Testing: How to plan, design and conduct effective tests. New York: Wiley.
Toub, S. (2000). Evaluating information architecture. Retrieved on November Retrieved Retrieved on september, 13, 2009, from http://argus-acia.com/white_papers evaluating_ia.pdf
UsabilityFirst (2008). Retrieved on June 12, 2008, from http://www.usabilityfirst.com/
Usibility.Gov (2008). Retrieved on April 10, 2008, from <http://www.usability.gov/>
Walbridge, S. (2000). Usability Testing and Libraries: The WSU Experience. The Washington Library Association Journal, 16(3), 23-24.
丁依玲 (2007). 以卡片分類法分析大學圖書館網站架構 - 以國立臺灣師範大學圖書館網站為例. 國立臺灣師範大學圖書資訊學研究所, 臺北市.
中國藥妝美容網 (2009). Retrieved 7月15日, 2009, from http://www.yzmr.com/articles/11/
王天壯 (2008). 全球藥妝品發展概況. 日用化學品科學, 31(6), 5-7.
王志偉 (2004). 農會特產網站功能與網路消費者特性影響購買意願之研究 大葉大學事業經營研究所 彰化.
王惠敬 (2007). 高科技讓消費者留住青春. 日用化學品科學, 30(4), 6-8.
張明明, 王海濤, 何聰芬, & 董銀卯 (2009). 藥妝的發展現狀和趨勢. 香料香精化妝品, 2, 42-45.
張紹勳 (2002). 電子商店之關係品質模式－融合交易成本理論及科技接受模式的觀點. 國立政治大學資訊管理學系, 台北市.
莎美雅專業藥妝 (2009). Retrieved 7月15日, 2009年, from http://www.beautydoctor.com.tw/
陳靜怡 (2004). 網路銀行接受度之探討. 中央大學企業管理研究所, 桃園縣.
彭淑媛 (1997). 網路購物商店服務品質與再購意願之實證研究. 實踐大學企業管理研究所, 台北市.
黃兆震 (2000). 網路購物意願之研究-以電腦通訊產品為例. 國立台灣科技大學資訊管理所, 台北市.
黃如足 (2002). 美術館網頁設計及使用性之研究. 南華大學美學與藝術管理研究所, 嘉義縣.
黃致淵 (2004). 服務保證類型、網路通路對消費者購買意願之關係研究-以企業可信度為干擾變數. 中國文化大學國際企業管理研究所, 台北市.
楊大緯 (2000). 網路購物意願之影響因素研究. 大同大學事業經營研究所, 台北市.
楊淑閔 (2009, 7月14日). 資策會估2009年台灣網購商機達3,116億元. 大紀元,
楊雅民 (2007). 醫學美容保養品發燒藥妝店搶食百億商機. 自由時報,
資策會 (2008). 2008年台灣網友行為與B2C消費發展趨勢: 資策會.
劉祖惠 (2008). 優值生活產業的現況與趨勢 優質生活產業的趨勢與通路的經營策略國際研討會講義: 財團法人生物技術開發中心.
劉祖惠, & 黃詩芳 (2008). 從優質生活需求看醫藥品、保健品及藥妝品之商機. 台北縣: 經濟部技術處產業技術知識服務計畫.
蔡惠如 (2005). 影響口碑傳播動機關鍵因素之探討─以連鎖藥妝藥局通路中醫學美容保養品藥師扮演角色為例 高雄醫學大學藥學研究所碩士在職專班, 高雄市.
魏澤群 (2007). 優使性2.0-網站經驗設計與使用者研究. 台北市: 網奕資訊.