拇指與食指操作之個人行動裝置介面設計：以行動電話使用者介面為例

石少勇

doi:10.6843/NTHU.2009.00202

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拇指與食指操作之個人行動裝置介面設計：以行動電話使用者介面為例

Design for Thumb and Index Finger Operated Interface for Personal Mobile Devices : A Case of Mobile Phone User Interface Design

石少勇 , Masters　　Advisor：王明揚　　

繁體中文 DOI： 10.6843/NTHU.2009.00202

拇指；食指；使用者介面；行動裝置； Thumb ； Index finger ； User Interface ； Mobile device

Abstract │ Reference (56) │ Times Cited (5) │ Altmetrics

Abstract 〈TOP〉

Parallel Abstract 〈TOP〉

Many people, when interacting with personal data entry devices, e.g., remote control, mobile phone or PDA, use single hand to manipulate them for the convenience and mobility. However, it is possible that the poor-designed mobile device interfaces may cause not only discomfort but also repetitive strain injury (RSI) on thumb and fingers when continuously entering data for a long enough period of time.
This study intends to redesign the user interface of mobile devices to ease the heavy workload on the thumb as well as to better fit our hand with the devices when grasping. Based on the motion characteristics of thumb and index finger and the one-handed operated interface requirements, a new design idea was emerged. The design principles were taken into consideration for the new interface design in order to increasing comfort and reducing muscle workload of the thumb. The method of this study is divided into two stages: new device innovation and evaluation. In the first stage, representative subjects were recruited for observing the texting behavior and collecting hand anthropometric data including the lengths of thumb, angles of neutral hand posture, and the handle shape of the finger-palm enclosure. Based on first study, a mockup of new mobile phone user interface was developed. In order to comparing the operational performance between the new interface and that of a redesigning general mobile phone, twelve subjects were recruited for the second stage experiment and evaluation will be carried out. The joint angle changes, operation time, muscle workload, and subjective feeling scale were measured. 
After experimental analysis, this study suggests: 1. Designing for the grasping region by curve contour and fillet and considering average anthropometric data for the mobile devices are suggesting. 2. Considering the anthropometric data of operating digit in distributing the location of keypad region could not only lower the joint angle changes of operating digit but enhance the accessibility when reaching each key. 3. The effort of adding index finger keys for reducing fatigue level is not seem to be obvious. 
Finally, the thesis suggests that consider the situation of using mobile device would be helpful in designing one-handed mobile device.

Reference ( 56 ) 〈TOP〉

3. 王茂駿、王明揚、林昱呈，民90，台灣地區人體計測資料庫手冊，中華民國人因工程學會。
連結：
4. 林玉婷，民97，手持式裝置之情境規劃，國立中央大學企業管理研究所碩士論文。
連結：
5. 林惠堂，民97，產品背板上按鍵之觸摸操作績效研究，大同大學工業設計所碩士論文。
連結：
7. 葉文裕，民84，手工具使用危害之調查研究，勞工委員會勞工安全衛生研究所，IOSH84-H325。
連結：
1. Anderson J. (2005). ‘“Blackberry Thumb”–a painful but avoidable musculoskeletal disorder.’ Ergoweb. (6/26/2009), http://www.ergoweb.com/news/detail.cfm?id=1210
連結：

Times Cited (5) 〈TOP〉

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