Journal of the Ergonomics Society of Korea (대한인간공학회지)

Ergonomics Society of Korea (대한인간공학회)
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Ergonomic Analysis of Cellular Phone Keypad Considering the Dominant Hand

  • Lee, Yong-Bok (Department of OR/SA, Korea National Defense University) ;
  • Jung, Won-Il (Department of OR/SA, Korea National Defense University) ;
  • Kim, Dong-Kyu (Department of OR/SA, Korea National Defense University) ;
  • Kang, Sung-Jin (Department of OR/SA, Korea National Defense University)
  • Received : 2010.11.22
  • Accepted : 2011.08.01
  • Published : 2011.10.31
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Abstract

Objective: The aim of this study is to give interest about usability of cellular phone keypad for left-handed person. Background: Although there are being a lot of attempts to design suitable product on user's request in process that design cellular phone keypad, ergonomic access about left-handed person who compose decimal class is unprepared. Especially, in early user's occasion, left-handed persons need more efforts than right-handed person to master Hangul character input process skill level. But, since realization about this left-handed person's discomfort has not spread, the importance has not been well thought in the society. Method: (1) After extracting emblem to use in comparison in questionnaire, applied emblem uniformly to different 3 kind of cellular phone. (2) Measured Hangul input time and mistyping number by dominant hand's position and skill level to reagent. (3) Taking the result through ANOVA. Conclusion: In the result of the experiment about Hangul input time and mistyping number according to dominant hand's position and skill level, left-handed person's group on the low skill level has shown the dullest use capability among 4 experiment groups. Application: In the future, analysis result may be used to the data of realization conversion in process design of various products including cellular phone keypad to consider left-handed person.

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