發(fā)布時間：2018-05-17 12:47

  本文選題：可用性測試 + 生理指標測量��； 參考：《北京郵電大學》2015年碩士論文

【摘要】：研究人員在改進產品的用戶體驗時通常需要借助可用性測試的方法了解產品設計中存在的問題,這些問題包括掌握系統(tǒng)使用方法是否需要花費大量學習成本、提供的功能是否能快速高效地完成目標任務、顯示界面上的元素排布是否條理清晰、用戶操作結束后能否提供明確地反饋、視覺設計是否能夠正確傳達功能隱喻等等,這些可用性問題最終都會影響到用戶的主觀滿意度。為了具體了解哪些可用性問題降低了用戶的滿意度,研究人員通常使用自我報告式的主觀評價方法,例如滿意度調查問卷、一對一的用戶訪談、多人的焦點小組討論以及邊操作邊描述的大聲思維等方法。但被試在使用這些主觀評價時會受到社會稱許性偏差、認知不一致等因素的影響,存在不能真實反映內心滿意度的情況,不利于發(fā)現(xiàn)產品的可用性問題。除此之外,傳統(tǒng)方法無法了解被試滿意度的變化情況,不利于針對性地發(fā)現(xiàn)被試在完成測試任務過程中遇到的可用性問題,影響可用性研究的效率。 針對傳統(tǒng)研究方法的不足之處,本研究借鑒了國內外生理心理學研究中主觀評價與生理測量相結合的方法,提出了一種基于眨眼間隔的用戶滿意度評價方法,該方法可通過被試在完成測試任務過程中的眨眼間隔對測試任務的用戶滿意度進行計算。研究中招募了31名被試分別完成兩項網(wǎng)站可用性測試任務并記錄實驗過程中的眼動數(shù)據(jù),任務結束后被試針對交互過程進行滿意度評分。實驗結果顯示,用戶眨眼間隔與滿意度之間存在較強的相關性,滿意度越低眨眼間隔越長。經(jīng)過實驗數(shù)據(jù)分析獲得滿意度與眨眼間隔之間的數(shù)學模型并計算獲得了不同眨眼間隔區(qū)間對應的滿意度打分結果(1-5分)。設計人員可通過該結果預測可用性測試中用戶的滿意度變化情況并以此為參考在設計中提升產品的可用性。
[Abstract]:Researchers who improve the user experience of a product often need to use usability testing to understand the problems in product design, including understanding whether the way the system is used costs a lot of learning costs. Whether the functions provided can accomplish the target task quickly and efficiently, whether the layout of the elements on the interface is clear, whether the user can provide clear feedback after the operation, whether the visual design can correctly convey the functional metaphor, and so on. These usability problems will ultimately affect the subjective satisfaction of users. To find out exactly which usability issues reduce user satisfaction, researchers often use self-reported subjective evaluation methods, such as satisfaction questionnaires, one-to-one user interviews. Multiplayer focus group discussions and loud thinking while manipulating. However, when using these subjective evaluations, the subjects will be influenced by the deviation of social approbation, cognitive inconsistency and other factors, which can not truly reflect the internal satisfaction, which is not conducive to finding the usability problems of the products. In addition, the traditional method can not understand the change of the participants' satisfaction, which is not conducive to the targeted detection of usability problems encountered in the process of completing the test task, which affects the efficiency of usability research. In view of the shortcomings of the traditional research methods, this study draws on the combination of subjective evaluation and physiological measurement in physiological and psychological research at home and abroad, and puts forward a method of user satisfaction evaluation based on blink interval. This method can calculate the user satisfaction of the test task by the blink interval of the test task. In this study, 31 subjects were recruited to complete two Web site usability testing tasks and record eye movement data during the experiment. After the task, the participants evaluated the satisfaction of the interaction process. The experimental results show that there is a strong correlation between user blink interval and satisfaction, and the lower the satisfaction is, the longer the blink interval is. The mathematical model between satisfaction and blink interval was obtained by analyzing the experimental data, and the satisfaction score of different blinking interval was calculated. The results can be used by designers to predict the change of user satisfaction in usability testing and to improve the usability of the product by reference to the design.
【學位授予單位】：北京郵電大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：B842

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本文編號：1901436