Journal of the Ergonomics Society of Korea (대한인간공학회지)

Ergonomics Society of Korea (대한인간공학회)
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Input Performance of the Old Adults in Touch Interface

고령자용 터치입력장치 설계를 위한 인적 수행도 평가

  • Hong, Seung-Kweon (Department of Industrial & Management Engineering, Chungju National University) ;
  • Park, Jung-Chul (Department of Safety Engineering, Chungju National University) ;
  • Kim, Sun-Su (Department of Industrial & Management Engineering, Chungju National University)
  • 홍승권 (충주대학교 산업경영공학과) ;
  • 박정철 (충주대학교 안전공학과) ;
  • 김선수 (충주대학교 산업경영공학과)
  • Received : 2010.04.01
  • Accepted : 2010.07.14
  • Published : 2010.08.31
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Abstract

In order to design a touch interface for the elderly, human performance of input tasks on the touch screen was investigated by the laboratory experiment. Input times and input errors were measured in the experimental conditions that were changed according to age, key size, interkey space and input tool(finger or stylus pen). In the most of all experimental conditions, the task performance of the elderly was lower than that of the young. However, there were significantly different performance patterns between both groups. As the difficulty of task was getting higher, the task performance of the elderly was sharply decreased; pressing small key button by finger sharply increased input time and error rate, compared to that of the young. Therefore, the square key size suitable to the elderly may be over $8.0{\times}8.0mm$. While the interkey space did not influence to the input task performance of the young, the task performance of the elderly was influenced. The elderly showed big difference of task performance according to input tool. However, the young were less influenced by input tool.

Keywords

References

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