數位金融的發展伴隨著區塊鏈的出現，在加密貨幣市場中，這一兩年來發展快速的NFT (Non-Fungible Tokens) 市場，其技術為將數位檔案運用區塊鏈的程式，鑄造成非同質化代幣，用程式碼紀錄其交易紀錄(包括圖片、影片、3D模型等、遊戲道具)，進而發展出交易平台並進行交易。使用者經驗與介面設計是在數位產品設計中非常重要的元素，隨著加密貨幣市場的發展，軟體服務以使用者為中心，提升用戶對平台的使用者體驗的重要性可說是水漲船高，許多文獻指出”信任”是金融相關的平台最需要的使用者體驗，但卻很少從設計角度切入的質性研究。NFT市場僅有五年的歷史，在充滿在高風險、伴隨高波動且高投機性的NFT市場中，對投資市場資訊不足的散戶投資者更顯得無所適從。
本研究以使用者經驗中的信任感為核心，藉由相關文獻探討整理出的信任元素做為研究架構，針對以現有最大的NFT二手交易平台Opensea做用戶體驗再設計。於網路發放問卷後，了解NFT市場輪廓，將問卷結果分為三個族群，從中篩選出目標族群:散戶投資人，並進行訪談與Opensea平台的操作測試，建立各自的人物誌與顧客旅程圖，了解他們在NFT二手市場交易時影響信任度的痛點。以介面設計軟體Figma設計原型並邀請原受訪者再進行一次用戶測試，最後以散戶投資者們的測試回饋為主，以專家意見為輔提出設計迭代的策略。
研究後發現，在三種用戶族群中，新手族群最需要的是警示/教學頁面/NFT賦能的展示，交易者最需要明確的資訊展示/頁面設計，收藏家族群則需要大比例的圖片/NFT項目方的資訊，並發現交易者族群對介面的改動最為敏感。也額外發現文獻中未提到的”介面間距與色彩改動”也會影響信任感，除此之外，改進UI/UX效率與增加風險與警示也是互相矛盾的元素。針對介面的信任感研究仍需考慮平台利益、資安與NFT項目方的品質。原型測試的結果整理出一款NFT平台的迭代設計建議，也揭示了文獻不足的部分，並根據原有架構提出更適合NFT市場的信任元素，給未來想開發加密市場相關平台服務的團隊或研究者做為參考。

User experience (UX) and user interface (UI) design are crucial factors in online platform design. Work has been carried out in both academia and industry for more than twenty years on establishing an appropriate framework for their development. In the context of the study of UX and the evolution of platform design, developments in digital finance have been accompanied by the emergence of blockchain technology. Consequently, various platform services have appeared on the cryptocurrency market, among which the Non-Fungible Token (NFT) market has been growing quickly in the past two years. Its mode of operation consists of using blockchain technology to convert a digital file (including pictures, videos, 3D models, and game props) into NFTs, using identification codes to prove the ownership of the digital assets, and developing a trading platform through which to conduct transactions. From the perspective of UX design, the growth of digital finance underscores the importance of enhancing the trust that users have in such trading platforms.
By reviewing the relevant literature, I have discovered many studies on the subject of trust, most of which conducted quantitative research. No relevant research has yet been done from the perspective of UX. Since NFT platforms have only a short 5-year history and they operate in a highly-volatile, risky market, individual investors who have no experience with NFT marketplaces are at a loss.
This study divides the components of the UX that have been linked to the concept of trust in the literature into four major UX categories. These trust-related elements are then used to develop a framework for conducting UX research and UI redesign, with a focus on OpenSea, the largest NFT trading platform on the secondary marketplace. The data collection started with the distribution of questionnaires in an attempt to gain an understanding of the NFT market and build profiles of the users of NFT platforms. Individual respondents were then selected to represent each user profile to undergo interviews. Finally, the operation of the OpenSea platform was assessed to understand the pain points that affect user trust when investors are engaged in trading on this platform. t
The study found that among the three groups, it was found that the novice group needed the most warnings/teaching pages/NFT-enabled displays, the trader group needed clear information displays/page designs, and the collector group needed large-scale images/NFT project side information. I found that the trader community is most sensitive to the changes in the interface. It is also found some elements also affect trust, they are "interface spacing and color changes", and that improving UI/UX efficiency and increasing risk and warning are contradictory elements, which are not mentioned in the literature. The study related to trust in the interface still needs to consider platform benefits, information security, and the nature of the NFT market. The results of the prototype testing compiled an iterative design proposal for the NFT platform, and also reveal the inadequate parts of the literature, trust can still be further adjusted to three major elements based on the NFT market, which could become a reference for future teams or researchers who want to develop platform services related to the crypto market

Abudy, M. M. (2020). Retail investors’ trading and stock market liquidity. The North American Journal of Economics and Finance, 54, 101281.
Ante, L. (2021). The non-fungible token (NFT) market and its relationship with Bitcoin and Ethereum. Available at SSRN 3861106.
Albert, B., & Tullis, T. (2013). Measuring the user experience: collecting, analyzing, and presenting usability metrics. Newnes.
B. A. Ramadhan and B. M. Iqbal, "User Experience Evaluation on the Cryptocurrency Website by Trust Aspect," 2018 International Conference on Intelligent Informatics and Biomedical Sciences (ICIIBMS), 2018, pp. 274-279
Chohan, U. W. (2017). History of Dogecoin. Discussion Series: Notes on the 21st Century.
Ciaian, P., & Rajcaniova, M. (2018). Virtual relationships: Short-and long-run evidence from BitCoin and altcoin markets. Journal of International Financial Markets, Institutions, and Money, 52, 173-195.
Constantine, L. L., & Lockwood, L. A. (1999). Software for use: a practical guide to the models and methods of usage-centered design. Pearson Education.
Crosier, A., & Handford, A. (2012). Customer journey mapping as an advocacy tool for disabled people: a case study. Social Marketing Quarterly, 18(1), 67-76.
de Wilde, M., & Spaargaren, G. (2019). Designing trust: how strategic intermediaries choreograph homeowners’ low-carbon retrofit experience. Building Research & Information, 47(4), 362-374.
Dowling, M. (2021). Is non-fungible token pricing driven by cryptocurrencies? Finance Research Letters, 102097.
Dreyfus, S. E., & Dreyfus, H. L. (1980). A five-stage model of the mental activities involved in directed skill acquisition. California Univ Berkeley Operations Research Center.
Eraut, M. (1994). Developing professional knowledge and competence. Psychology Press.
Eisenmann, T., Parker, G., & Van Alstyne, M. W. (2006). Strategies for two-sided markets. Harvard business review, 84(10), 92.
Ericsson, K., & Simon, H. Verbal reports as data. Psychological Review. May 1980, 87 (3): 215–251. doi:10.1037/0033-295X.87.3.215.
Ericsson, K., & Simon, H. Verbal reports on thinking. C. Faerch & G. Kasper (eds.) (編). Introspection in Second Language Research. Clevedon, Avon: Multilingual Matters. 1987: 24–54.
Enhancing the Experience of the Train Journey: Changing the Focus from Satisfaction to Emotional Experience of Customers - Scientific Figure on ResearchGate. Available from: https://www.researchgate.net/figure/The-emotional-curve-of-train-travel_fig4_270915955 [accessed 2 Dec, 2021]
Fogg, B.J. (May 2002). "Stanford Guidelines for Web Credibility." A Research Summary from the Stanford Persuasive Technology Lab. Stanford University. www.webcredibility.org/guidelines
Garrett, J. J. (2010). The elements of user experience: user-centered design for the web and beyond.
Gian Volpicelli (2021). Cryptocurrency: How Digital Money Could Transform Finance.
Glaser, F. (2017). Pervasive decentralization of digital infrastructures: a framework for blockchain-enabled system and use case analysis.
Glomann, L., Schmid, M., & Kitajewa, N. (2019, July). Improving the blockchain user experience-an approach to address blockchain mass adoption issues from a human-centered perspective. In International Conference on Applied Human Factors and Ergonomics (pp. 608-616). Springer, Cham.
Hartson, R., & Pyla, P. (2012). The UX Book: Process and guidelines for ensuring a quality user experience.
Hawlitschek, F., Notheisen, B., & Teubner, T. (2018). The limits of trust-free systems: A literature review on blockchain technology and trust in the sharing economy. Electronic commerce research and applications, 29, 50-63.
Jeon, H. J., Youn, H. C., Ko, S. M., & Kim, T. H. (2021). Blockchain and AI Meet in the Metaverse.
Karlan, D., Mobius, M., Rosenblat, T., & Szeidl, A. (2009). Trust and social collateral. The Quarterly Journal of Economics, 124(3), 1307-1361.
Kallio, H., Pietilä, A. M., Johnson, M., & Kangasniemi, M. (2016). Systematic methodological review: developing a framework for a qualitative semi‐structured interview guide. Journal of advanced nursing, 72(12), 2954-2965.
Kate MacFarlane (2019) How Fintech Apps Use UX To Build Trust?
King, B. (2018). Bank 4.0: Banking everywhere, never at a bank.
Kiong, L. V. (2021). DeFi, NFT and GameFi Made Easy: A Beginner's Guide to Understanding and Investing in DeFi, NFT and GameFi Projects.
Kowalski, M., Lee, Z. W., & Chan, T. K. (2021). Blockchain technology and trust relationships in trade finance. Technological Forecasting and Social Change, 166, 120641.
Krosnick, J. A. (2018). Questionnaire design. In The Palgrave handbook of survey research (pp. 439-455). Palgrave Macmillan, Cham.
Krug, S. (2000). Don't make me think!: a common sense approach to Web usability. Pearson Education India.
Lemon, K. N., & Verhoef, P. C. (2016). Understanding customer experience throughout the customer journey. Journal of Marketing, 80(6), 69-96.
Litos, O. S. T., & Zindros, D. (2017, April). Trust is risk: a decentralized financial trust platform. In International Conference on Financial Cryptography and Data Security (pp. 340-356). Springer, Cham.
Marsh, J. (2015). UX for beginners: A crash course in 100 short lessons. " O'Reilly Media, Inc.".
Maziriri, E. T., Mapuranga, M., & Madinga, N. W. (2019). Navigating selected perceived risk elements on investor trust and intention to invest in online trading platforms. Journal of Economic and Financial Sciences, 12(1), 1-14.
Mislin, A., Williams, L. V., & Shaughnessy, B. A. (2015). Motivating trust: Can mood and incentives increase interpersonal trust?. Journal of Behavioral and Experimental Economics, 58, 11-19.
Musante, K., & DeWalt, B. R. (2010). Participant observation: A guide for fieldworkers. Rowman Altamira.
Möhlmann, M., & Geissinger, A. (2018). Trust in the sharing economy: platform-mediated peer trust. Cambridge Handbook of the Law of the Sharing Economy, 27-37.
Muhammad Habib ur Rehman, Khaled Salah, Ernesto Damiani, Davor Svetinovic, "Trust in Blockchain Cryptocurrency Ecosystem", Engineering Management IEEE Transactions on, vol. 67, no. 4, pp. 1196-1212, 2020.
Nakamoto, S. (2008). Bitcoin: A peer-to-peer electronic cash system. Decentralized Business Review, 21260.
Nielsen, J. (1994, April). Usability inspection methods. In Conference Companion on Human factors in computing systems (pp. 413-414).
Nielsen, J. (1995). 10 usability heuristics for user interface design. Nielsen Norman Group, 1.
Norman, D. (2013). The design of everyday things: Revised and expanded edition. Basic books.
Norman, D. A. (1988). The psychology of everyday things. Basic books.
Norman, D., Miller, J., & Henderson, A. (1995, May). What you see, some of what's in the future, and how we go about doing it: HI at Apple Computer. In Conference Companion on Human factors in computing systems (p. 155).usability. interactions, 17(5), 46-49.
Ondrejka, C. (2004). Escaping the gilded cage: User-created content and building the metaverse. NYL Sch. L. Rev., 49, 81.
Parker, G. G., Van Alstyne, M. W., & Choudary, S. P. (2016). Platform revolution: How networked markets are transforming the economy and how to make them work for you.
Riegelsberger, J., Sasse, M. A., & McCarthy, J. D. (2005). The mechanics of trust: A framework for research and design. International Journal of Human-Computer Studies, 62(3), 381-422.
Regner, F., Urbach, N., & Schweizer, A. (2019). NFTs in practice–non-fungible tokens as a core component of a blockchain-based event ticketing application.
Renault, T. (2017). Intraday online investor sentiment and return patterns in the US stock market. Journal of Banking & Finance, 84, 25-40.
Rosenfeld, L., & Morville, P. (2002). Information architecture for the world wide web.
Shen, Z., & Cao, D. (2011). Comparative study on the impacts of institutional and individual investors on security investment risk. Journal of Service Science and Management, 4(02), 118.
Shin, D. and Hwang, Y. (2020), "The effects of security and traceability of blockchain on digital affordance", Online Information Review, Vol. 44 No. 4, pp. 913-932. https://doi.org/10.1108/OIR-01-2019-0013
Shneiderman, B., Plaisant, C., Cohen, M. S., Jacobs, S., Elmqvist, N., & Diakopoulos, N. (2016). Designing the user interface: strategies for effective human-computer interaction. Pearson.
Tuch, A. N., Presslaber, E. E., Stöcklin, M., Opwis, K., & Bargas-Avila, J. A. (2012). The role of visual complexity and prototypicality regarding first impression of websites: Working towards understanding aesthetic judgments. International journal of human-computer studies, 70(11), 794-811.
Vargo, S. L., & Lusch, R. F. (2008). Service-dominant logic: continuing the evolution. Journal of the Academy of marketing Science, 36(1), 1-10.
West, S., & Di Nardo, S. (2016). Creating product-service system opportunities for small and medium size firms using service design tools. Procedia CIRP, 47, 96-101.
Mislin, A., Williams, L. V., & Shaughnessy, B. A. (2015). Motivating trust: Can mood and incentives increase interpersonal trust?. Journal of Behavioral and Experimental Economics, 58, 11-19.
Wilson, K. B., Karg, A., & Ghaderi, H. (2021). Prospecting non-fungible tokens in the digital economy: Stakeholders and ecosystem, risk and opportunity. Business Horizons.
Zheng, Z., Xie, S., Dai, H. N., Chen, X., & Wang, H. (2018). Blockchain challenges and opportunities: A survey. International Journal of Web and Grid Services, 14(4), 352-375.
Szeli, L. (2020). UX in AI: trust in algorithm-based investment decisions. Junior Management Science, 5(1), 1-18.
張采蘋, & 鄭霈絨. (2018). 行動購物程式之操作介面改善對網購者信任度的影響. IJDMD, 9.
玉飼真一, 村上竜介, 佐藤哲, 太田文明, 常盤晋作, & Corporation, I. (2018). WEB 設計職人必修：UX Design 初學者學習手冊
謝人俊、林耀傑. (2020). 中央銀行金融業務檢查處 - 數位金融環境下銀行經營型態的 演變與對策.
KPMG. (2020). KPMG Banking Report.
Karagianni, K. (2018, December 6). Hierarchy of Trust: The 5 Experiential Levels of Commitment. Retrieved from https://semanticstudios.com/user_experience_design/
Nielsen , J. (1999, May 6). Trust or Bust: Communicating Trustworthiness in Web Design. Retrieved from https://www.nngroup.com/articles/communicating-trustworthiness/
Phil mackintosh. (2020). Who Counts as a Retail Investor? Retrieved from https://www.nasdaq.com/articles/who-counts-as-a-retail-investor-2020-12-17
Ruiz, josefina. (2020, June). What’s the UX Honeycomb? Retrieved from https://lightit.io/blog/whats-the-ux-honeycomb/
Sherwin, K. (2016, May 6). Hierarchy of Trust: The 5 Experiential Levels of Commitment. Retrieved from https://www.nngroup.com/articles/commitment-levels/
Singh, P. (2020). Reliability and Validity: Ensuring a Foolproof UX Research Plan. User Experience Magazine, 20(2). Retrieved from https://uxpamagazine.org/reliability-and-validity-ensuring-a-foolproof-ux-research-plan/
Harley, A. (2016, May). Trustworthiness in Web Design: 4 Credibility Factors. Retrieved from https://www.nngroup.com/articles/trustworthy-design/
Interaction design foundation. (2020). What Is Credibility? Retrieved from https://www.interaction-design.org/literature/topics/credibility
ISO 9241-210:2019 Ergonomics of Human-System Interaction — Part 210: Human-Centred Design for Interactive Systems. (2019, July). Retrieved from https://www.iso.org/standard/77520.html
Taylor, justin. (n.d.). Twitter of Justin Taylor. Twitter. https://twitter.com/TheSmarmyBum?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1443259893411049475%7Ctwgr%5E%7Ctwcon%5Es1_&ref_url=https%3A%2F%2F
Chen, james. (2022, April 19). What Is Fiat Money? Investopedia. https://www.investopedia.com/terms/f/fiatmoney.asp
Meta. (2021). Welcome to Meta. Meta. https://about.facebook.com/meta
ABMedia. (2021, October). 深度解析 OpenSea 的 NFT 革命：起源、產品、風險與發展前景. Retrieved from https://www.abmedia.io/20211018-the-reasonable-revolutionaryhttps://www.mechanism.capital/nft-market-size
Apple inc. (2021). Buttons. Retrieved from https://developer.apple.com/design/human-interface-guidelines/ios/controls/buttons/
Rehow.net. (2021, December 8). About 3 out of 10 People Know NFT? Questionnaire Survey of 500 People about the Popularity of NFT, Which Has Been a Hot Topic These Days! Retrieved from https://re-how.net/all/1567834/
Leu, K. (2020). Non-Fungible Token Survey The Next Trend in Cryptocurrencies?
Lee, A. (2016, March 28). 讀者來信：UI 設計流程. Retrieved from https://blog.akanelee.me/posts/686437-ui-design-process
Chainalysis team. (2021). The 2021 NFT Market Explained. Retrieved from https://blog.chainalysis.com/reports/nft-market-report-preview-2021
Hsu, aaron. (2019, December). 使用經驗要素 Elements of UX. Retrieved from https://medium.com/@aaron.zl.hsu/%E4%BD%BF%E7%94%A8%E7%B6%93%E9%A9%97%E8%A6%81%E7%B4%A0-elements-of-ux-c316ec028fa4
Morville, P. (2004, June 21).Optimizing the UX Honeycomb. Retrieved from https://uxdesign.cc/optimizing-the-ux-honeycomb-1d10cfb38097
Mcleod, saul . (2018). Questionnaire: Definition, Examples, Design and Types. Https://Www.Simplypsychology.Org/Questionnaires.Html.
lin, J. (2019, October 30). Figma — 異軍突起的設計協作神器. Retrieved from https://medium.com/as-a-product-designer/figma-design-tool-1c6542ae8dc1
Kuo, S. (2017, May 31). UX流程簡介（中）：Wireframe to 1st Usability Testing. Retrieved from https://medium.com/as-a-product-designer/ux%E6%B5%81%E7%A8%8B%E7%B0%A1%E4%BB%8B-%E4%B8%AD-wireframe-to-1st-usability-testing-b5393b96ce12
Kewat, A. (2021, December 22). NFT Planet: UX Case Study to Create a Exchange Platform to Trade in NFTs. Retrieved from https://medium.muz.li/nft-planet-ux-case-study-to-create-a-exchange-platform-to-trade-in-nfts-6a034634de8b