Advertisement

User Modeling pp 135-146 | Cite as

Dynamic Modelling of Keyboard Skills: Supporting Users With Motor Disabilities

  • Shari Trewin
  • Helen Pain
Part of the International Centre for Mechanical Sciences book series (CISM, volume 383)

Abstract

This paper describes the effective application of user modelling to the assessment of the physical ease with which a user can operate a standard QWERTY keyboard. The application is unusual in the sense that physical rather than cognitive skills are being modelled. The model examines four important skills which a user may have difficulty with, and produces an assessment of the ideal keyboard configuration for that user. This assessment can then be used to adapt the keyboard. For users with motor disabilities, such adaption can minimise or even eliminate the problems they experience. The model dynamically adapts to the current user and operates on free English text input. It has been evaluated using typing data from twenty keyboard users with disabilities and six without. The configuration recommendations made are very well matched to the users’ problem areas.

Keywords

User Model Motor Disability Qwerty Keyboard Repeat Delay Spurious Error 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Allen, R. (1990). User models: Theory, method and practice. International Journal of Man-Machine Studies 32:511–543.CrossRefGoogle Scholar
  2. Broadbent, S., and Curran, S. (1992). The Assessment, Disability and Technology Handbook. Oldham: North West Regional ACCESS Centre and Oldham Education Department.Google Scholar
  3. Brown, J., and Burton, R. (1978). Diagnostic models for procedural bugs in basic mathematical skills. Cognitive Science 2:155–192.CrossRefGoogle Scholar
  4. Casali, S. (1995). A physical skills based strategy for choosing an appropriate interface method. In Edwards, A. D. N., ed., Extra-Ordinary Human-Computer Interaction: Interfaces for Users with Disabilities. Cambridge University Press. chapter 17, 315–341.Google Scholar
  5. Clancey, W. (1987). Knowledge-Based Tutoring: The GUIDON Program. MIT Press.Google Scholar
  6. Jameson, A. (1996). Numerical uncertainty management in user and student modeling: An overview of systems and issues. User Modeling and User-Adapted Interaction 5:193–251.CrossRefGoogle Scholar
  7. Kass, R., and Finin, T. (1988). A general user modelling facility. In Proceedings of Computer Human Interaction, 145–150. New York: ACM.Google Scholar
  8. Kass, R., and Finin, T. (1989). The role of user rhodels in cooperative interactive systems. International Journal of Intelligent Systems 4:81–112.CrossRefGoogle Scholar
  9. Rich, E. (1983). Users are individuals: Individualising user models. International Journal of Man-Machine Studies 18:199–214.CrossRefGoogle Scholar
  10. Rich, E. (1989). Stereotypes and user modeling. In Kobsa, A., and Wahlster, W., eds., User Models in Dialog Systems. Berlin: Springer-Verlag. 35–51.CrossRefGoogle Scholar
  11. Self, J. (1988). Bypassing the intractable problem of student modelling. In Gauthier, G., and Frasson, C., eds., Proceedings of Intelligent Tutoring Systems ’88, 18–24.Google Scholar
  12. Smutz, P., Serina, E., and Rempel, D. (1994). A system for evaluating the effect of keyboard design on force, posture, comfort and productivity. Ergonomics 37(10): 1649–1660.CrossRefGoogle Scholar
  13. Trewin, S., and Pain, H. (1996a). Keyboard and mouse errors due to motor disabilities. DAI research paper 838, AI Dept, University of Edinburgh. Submitted for publication.Google Scholar
  14. Trewin, S., and Pain, H. (1996b). On the adequacy and uptake of keyboard access facilities for people with motor disabilities. DAI research paper 839, AI Dept, University of Edinburgh. Submitted for publication.Google Scholar
  15. Webb, G., and Kuzmycz, M. (1996). Feature based modelling: A methodology for producing coherent, consistent, dynamically changing models of agents’ competencies. User Modeling and User-Adapted Interaction 5:117–150.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Wien 1997

Authors and Affiliations

  • Shari Trewin
    • 1
  • Helen Pain
    • 1
  1. 1.Department of Artificial IntelligenceUniversity of EdinburghScotland

Personalised recommendations