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研究生:陳揚棚
研究生(外文):Heero Yang-peng Chen
論文名稱:以使用者需求為基礎結構化可用性評估方法:以使用互動電視選單導覽為例
論文名稱(外文):A Structured and User-requirement-based Usability Evaluation Method: A Case Study in Menu Navigation of Interactive TV
指導教授:王明揚王明揚引用關係
指導教授(外文):Eric Min-yang Wang
學位類別:碩士
校院名稱:國立清華大學
系所名稱:工業工程與工程管理學系
學門:工程學門
學類:工業工程學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
語文別:中文
論文頁數:92
中文關鍵詞:互動電視人機介面結構化可用性評估使用者需求可用性脈絡
外文關鍵詞:Interactive TVHuman-computer InterfaceStructured Usability EvaluationUser requirementsContext of usability
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電視訊號數位化促進家用電視可以提供更多樣化的服務,使用者與電視介面的互動也變得較傳統電視複雜。然而,使用者觀看電視大部份是為了休閒娛樂,享受家庭生活。因此,人機介面的可用性評估不但得考慮效能(Effectiveness)與效率(Efficiency),更需要清楚地瞭解對於使用者滿意度(Satisfaction)的影響,增進可用性評估在家用產品的適用性。
本研究之目的在於提出結構化可用性評估的方法,藉由專家與使用者的共同參與,建構互動系統的可用性脈絡,選擇合適的可用性指標,測試互動系統的可用性,建議設計人員改善介面的參考方向。
本研究中應用結構化可用性評估方法探討互動電視個案。從個案結果發現目前互動電視最重要的議題在於導覽選單設計,包括適當的目錄名稱與分類方式及介面呈現的訊息能夠有良好的操作提示。另一方面,可以看出本方法除了篩選主要的使用者需求與可用性工程的關係,更進一步透過可用性指標分析檢驗,使得研究結果更為穩固。
Interactive domestic facilities provide diverse services nowadays and make human-computer interface issues more complex. Whether the interactive systems adapt target users therefore is very important. To achieve the goal of bettering users’ experiences, effectiveness, efficiency and user satisfaction are three principal considerations.
The aim of this paper is to propose a structured methodology for implementing usability evaluation which takes into consideration of the principles just mentioned. There are three steps in the process. Domain experts and target users were first recruited to collaboratively establish the context of usability, and followed by choosing proper usability indices to evaluate the interactive systems. Recommendations for improving current product/prototype can be drawn from the analysis results lastly.
Interactive TV (iTV) was chosen as a case in this current study to prove the proposed methodology is feasible. Results showed that the most important issue for current iTV design was navigation menu, which included classifying/naming the folder properly and providing intuitive cues during operation. By this we proved that the proposed methodology does have the ability to detect possible area for improvement and at the meanwhile the results can be more robust because of the usability indices measurements.
摘要 i
Abstract ii
誌謝 iii
目錄 iv
圖目錄 vi
表目錄 vii
第一章 緒論 1
第一節 研究背景 1
第二節 研究動機 2
第三節 研究目的 3
第四節 研究架構 4
第二章 文獻探討 6
第一節 互動電視 6
第二節 使用者需求 9
第三節 可用性工程 12
第四節 使用者需求與可用性 20
第三章 研究方法 23
第一節 分析使用者需求 24
第二節 建立可用性脈絡 28
第三節 執行可用性測試 31
第四節 資料分析 31
第四章 個案研究 33
第一節 分析互動電視之使用者需求 33
第二節 建立互動電視之可用性脈絡 35
第三節 執行互動電視之可用性測試 36
第五章 結果與討論 38
第一節 互動電視之使用者需求 38
第二節 互動電視之可用性脈絡 40
第三節 互動電視之可用性測試資料分析 43
第六章 結論與建議 48
參考文獻 50
附錄一:中華電信MOD使用者訪談大綱 56
附錄二:可用性脈絡之�巡嶊k問卷 58
附錄三:可用性測試實驗之情境任務 76
附錄四:NASA-TLX主觀評比問卷 77
附錄五:滿意度問卷 80
附錄六:焦點團體討論使用者需求之初步分析表 84
附錄七:建構可用性脈絡之�巡嶊k問卷統計結果 86
附錄八:可用性指標之統計分析 90
附錄九:滿意度問卷之使用者意見 92
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