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Virtual Sliding QWERTY: A new text entry method for smartwatches using Tap-N-Drag
Jae-Min Cha1, Eunjung Choi2, Jihyoun Lim3
1Dept. of Industrial and Management Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyungbuk, Republic of Korea.
Applied Ergonomics
|July 9, 2015
Summary
Smartwatch text input is challenging. A new Virtual Sliding QWERTY (VSQ) method with
Area of Science:
- Human-Computer Interaction
- Wearable Technology
- Usability Engineering
Background:
- Smartwatch screens pose challenges for text input compared to smartphones.
- Previous text entry methods for smartwatches lack robust usability testing or show poor performance.
Purpose of the Study:
- To introduce and evaluate a novel text entry method for smartwatches.
- To address the limitations of existing smartwatch text input techniques.
Main Methods:
- Proposed the Virtual Sliding QWERTY (VSQ) method, featuring a virtual QWERTY keyboard and a 'Tap-N-Drag' interface.
- Conducted a usability test with 20 participants, assessing various key sizes and CD-gains.
Main Results:
- VSQ achieved an average text input speed of 11.9 Words Per Minute, surpassing previous methods.
- Optimal performance was observed with VSQ using a 5x5 key size and 2x or 3x CD-gain.
Conclusions:
- The Virtual Sliding QWERTY (VSQ) method offers a significant improvement for text entry on smartwatches.
- Specific configurations of key size and CD-gain enhance VSQ's quantitative and qualitative usability.
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