Evaluation of text entry methods for Korean mobile phones, a user study

Authors:
Ivaylo Ilinkin;Sunghee Kim
Affiliations:
Gettysburg College, Gettysburg, PA, USA;Gettysburg College, Gettysburg, PA, USA
Venue:
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Year:
2010

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Abstract

This paper reports the results of a user study designed to evaluate text entry methods for mobile phones used in Korea. At present the keypad layout for Korean mobile phones has not been standardized and different manufacturers produce phones with different layouts. Included in the evaluation are three of the dominant text entry methods: Chon-ji-in, EZ-Hangul, and SKY. The metrics used in the analysis are key strokes per character, words per minute, and total error rate. The results suggest that SKY offers a good balance between speed, effort, and accuracy. The paper also introduces a phrase set that has high correlation with the Korean language and could be used in other experiments on Korean text entry methods.