| Summary: | 碩士 === 國立成功大學 === 工業設計學系碩博士班 === 100 === Natural-User-Interface (NUI) has become the key factor for successful product innovation recently. Since the raising of multi-touch phone’s global market share, the population of mobile workers increased, further expanded the need of mobile network service. The larger area of multi-touch screen also causes the frequent browsing behaviors. However, user experience is different in mobile environment. People prefer to hold mobile phone with one hand, but fat finger problem occurs more obviously as well as the limitations of finger movement.
The goal of this research is to understand how dual-surface touch gesture helps user interact mobile phone with one hand from user experience perspective. Hence, we proposed a set of gestures and some design recommendations for enhancing the browsing usability.
First, we investigated the user context of mobile web, five browsing functions were selected: back/next, zoom, new tab, close tab, and search. According to signal theory, we developed the semantic dimensions of gesticulation for these functions in focus group. Then we designed various gesture patterns by method 635 and evaluated 25 gestures in confuse matrix, recognized time and subject preference. Finally we emulated the information seeking task on mobile phone.
The results showed that, compare to traditional graphic user interface (GUI), browsing gestures eased the thumb fatigue, reduced the error rate and task completed time.
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