ABSTRACT
"Point and click" interactions remain one of the key features of graphical user interfaces (GUIs). People with motion-impairments, however, can often have difficulty with accurate control of standard pointing devices. This paper discusses work that aims to reveal the nature of these difficulties through analyses that consider the cursor's path of movement. A range of potential cursor measures was applied, and a number of them were found to be significant in capturing the differences between able-bodied users and motion-impaired users, as well as the differences between a haptic force feedback condition and a control condition. cursor measures found in the literature, however, do not make up a comprehensive list, but provide a starting point for analysing cursor movements more completely. Six new cursor characteristics for motion-impaired users are introduced to capture aspects of cursor movement different from those already proposed.
- Brown, C. Assistive technology computers and persons with disabilities. Comm. ACM 35, 5 (May 1992), 36--45. Google ScholarDigital Library
- Dennerlein, J. T., Martin, D. B., and Hasser, C. Force-feedback improves performance for steering and combined steering-targeting tasks, in Proceedings of CHI2000 (The Hague, 2000), ACM Press, 423--429. Google ScholarDigital Library
- Douglas, S. A., Kirkpatrick, A. E., and MacKenzie, I. S. Testing pointing device performance and user assessment with the ISO 9241, part 9 standard, in Proceedings of CHI'99 (1999), ACM Press 215--222 Google ScholarDigital Library
- Evans, D. G., Drew, R., and Blenkhorn, P. Controlling a mouse pointer position using an infrared head-operated joystick. IEEE Trans. on Rehabilitation Engineering, 8, 1 (March 2000), 107--117.Google ScholarCross Ref
- ISO/DIS 9241--9 Ergonomic requirements for office work with visual display terminals, non-keyboard input device requirements, draft international standard. International Organization for Standardization, 1998.Google Scholar
- Keates S, Clarkson PJ, Robinson P. Investigating the applicability of user models for motion-impaired users, in Proceedings of ACM ASSETS 2000 (Arlington VA 2000), ACM Press, 129--136. Google ScholarDigital Library
- Keates, S., Langdon, P., Clarkson, J., and Robinson, P. Investigating the use of force feedback for motion-impaired users, in Proceedings of the 6th ERCIM Workshop (Florence, 2000), 207--212.Google Scholar
- Langdon, P., Keates, S., Clarkson, J., and Robinson, P. Investigating the cursor movement parameters for haptic assistance of motion-impaired users, in Mokhtari, M. (ed.), Integration of Assistive Technology in the Information Age(2001), IOS Press, 237--242.Google Scholar
- MacKenzie, I. S., Kauppinen, T., and Silfverberg, M. Accuracy measures for evaluating computer pointing devices, in Proceedings of CHI 2001 (Seattle WA, 2001), ACM Press, 9--15. Google ScholarDigital Library
- Stephanidis, C. User interfaces for all: New perspectives into human-computer interaction, in Stephanidis, C., editor, User Interfaces for All (2001), Lawrence Erlbaum, 3--17.Google Scholar
- Stephanidis, C. Designing for all in the Information Society: Challenges towards universal access in the information age. ERCIM ICST Research Report (1999), 21--24.Google Scholar
- Trewin, S. A study of input device manipulation difficulties, in Proceedings of ASSETS'96 (Vancouver, BC, 1996), ACM Press, 15--22. Google ScholarDigital Library
Index Terms
- Cursor measures for motion-impaired computer users
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