Universal Access in the Information Society

, Volume 5, Issue 3, pp 306–324

Validation methods for an accessible user interface for a rehabilitation robot


  • Bernard Parsons
    • Becrypt Ltd
    • School of Computing ScienceMiddlesex University
  • Peter Warner
    • School of Computing ScienceMiddlesex University
  • Raj Gill
    • School of Computing ScienceMiddlesex University

DOI: 10.1007/s10209-006-0051-y

Cite this article as:
Parsons, B., White, A., Warner, P. et al. Univ Access Inf Soc (2006) 5: 306. doi:10.1007/s10209-006-0051-y


This paper describes the research methods required for the development and validation of a user interface for a wheelchair mounted manipulator for use by severely disabled persons. It explains the construction of the interface using tasks to define the user interface architecture. It outlines the experiments used to evaluate the user responses and draws conclusions about the effectiveness of the whole system. A systematic procedure is defined to obtain numerical estimates of the effectiveness of task analysis for individual use. This approach marries engineering procedures with a consideration of the human interaction. The prototype robot used several gesture recognition systems to achieve a better level of accessibility and usability than other robots used for rehabilitation at this time. Two different approaches to user interfaces were tested with different input devices.

Copyright information

© Springer-Verlag 2006