Samit Bhattacharya
ABSTRACT
Virtual scanning keyboards are text entry systems used by individuals with severe speech and motion impairments. In this paper, we present results of our empirical study on user errors for such keyboards. We also propose a computational error model and a method for evaluation of such keyboards taking errors into account. The work is aimed to help designers make appropriate choice from a large number of design alternatives with minimum user involvement.
- Beukelman, R. D. & Mirenda, P. Augmentative and Alternative Communication (2nd Eds). Baltimore, MD: Brookes publishing Co, 1998.Google Scholar
- Damper, R. I. Text composition by the physically disabled: A rate prediction model for scanning input. Applied Ergnonomics, 15 (1984), 289--296, 1984.Google ScholarCross Ref
- Horstmann, H. M. & Levine, S. P. Modeling of user performance with computer access and augmentative communication systems for handicapped people. AAC, 6 (1990), 231--241.Google Scholar
- Koester, H. H. & Levine, S. P. Modeling the speed of text entry with a word prediction interface. IEEE Trans. on Rehabilitation Engineering, 2 (1994), 177--187.Google ScholarCross Ref
- Mukherjee, A., Bhattacharya, S., Halder, P. & Basu, A. A Virtual Predictive Keyboard as a Learning Aid for People with Neuro-motor Disorders. Proc. 5th IEEE Int. Con. on Advanced Learning Technology (ICALT), 2005. Google ScholarDigital Library
- Soukoreff, R. W. & MacKenzie, I. S. Theorectical upper and lower bounds on typing speed using a stylus and soft keyboard. Behaviour and Information Technology, 14 (1995), 370--379.Google ScholarCross Ref
- Steriadis, C. E. & Constantinou, P. Designing Human-Computer Interfaces for Quadriplegic People. ACM Tran. Comp. Hum. Int. 10, 2 (2003), 87--118. Google ScholarDigital Library
- Trewin, S. & Pain, H. Keyboard and mouse errors due to motor disabilities. Int. J. Hum-Comp Stud, 50(2) (1999), 109--144. Google ScholarDigital Library
- See for example www.abilityhub.com.Google Scholar
- Census of India 2001, www.censusindia.gov.in.Google Scholar
- www.words-plus.com.Google Scholar
- www.cricksoft.com.Google Scholar
Index Terms
- Study and modeling of user errors for virtual scanning keyboard design
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