Journal of Korean Institute of Industrial Engineers (대한산업공학회지)

Korean Institute of Industrial Engineers (대한산업공학회)
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Usability Improvement for the Speech Interface of Mobile Phones While Driving

운전 상황에서 휴대폰 음성인터페이스의 사용성 향상에 관한 연구

  • Kang, Yun-Hwan (Department of Industrial Engineering, Korea University) ;
  • Jeong, Seong-Wook (Department of Industrial Engineering, Korea University) ;
  • Jung, Ga-Hun (Department of Industrial Engineering, Korea University) ;
  • Choi, Jae-Ho (Department of Industrial and Systems Engineering, Daejin University) ;
  • Jung, Eui-S. (Department of Industrial Engineering, Korea University)
  • 강윤환 (고려대학교 산업시스템정보공학과) ;
  • 정성욱 (고려대학교 산업시스템정보공학과) ;
  • 정가훈 (고려대학교 산업시스템정보공학과) ;
  • 최재호 (대진대학교 산업시스템공학과) ;
  • 정의승 (고려대학교 산업시스템정보공학과)
  • Received : 2008.11.12
  • Accepted : 2008.12.16
  • Published : 2009.03.31
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Abstract

While driving, the manual use of a mobile phone is heavily restricted due to the interference with the primary driving task. An alternative would be the use of speech interface. The current study aims to provide a guideline to implementation of a speech interface to the mobile phone. To do so, an expert evaluation was made and it revealed that a speech interface requires less workload, less performance degradation of the driving task than that of the keypad interface. To make speech interfaces more usable, new improvements are suggested. Subjective workload can be reduced and user satisfaction can be improved without degrading the primary task performance, for instance, by letting the user interrupt the speech of the phone, eliminating the repetitive words, letting the user know clearly what makes an error, providing a way to go back to the previous state, reducing the usage of keypad buttons and reducing the amount of the information on the screen.

Keywords

References

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