Design and implementation of a chorded on-screen keyboard for people with physical impairments

  • Authors:

  • Yun-Lung Lin;Ming-Chung Chen;Yao-Ming Yeh;Wen-Jeng Tzeng;Chih-Ching Yeh

  • Affiliations:

  • Department of Information and Computer Education, National Taiwan Normal University, Taipei, Taiwan;Department of Special Education, National Chiayi University, Chiayi, Taiwan;Department of Information and Computer Education, National Taiwan Normal University, Taipei, Taiwan;Department of Information and Computer Education, National Taiwan Normal University, Taipei, Taiwan;Department of Information and Computer Education, National Taiwan Normal University, Taipei, Taiwan

  • Venue:
  • ICCHP'06 Proceedings of the 10th international conference on Computers Helping People with Special Needs
  • Year:
  • 2006

Quantified Score

Hi-index 0.00

Visualization

Abstract

The purposes of this study were to design an alternative on-screen keyboard for people with physical impairments and to evaluate the efficacy of the chorded input method. The approach of the on-screen keyboard is based on the human computer interface. It gives visual guide and instant feedback to show users where they can find the characters they need. The system has been designed with the principles of universal design. Three factors including the learning ability, efficiency of using and subjective satisfaction are considered as the usability evaluation. According to a preliminary study, the participant felt mastered the text input method quickly. An experimental evaluation on the typing performance of the subjects with muscular dystrophy will be measured under both scanning input mode and chorded input mode in the future