Human interface design and the handicapped user
CHI '86 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
A physical skills based strategy for choosing an appropriate interface method
Extra-ordinary human-computer interaction
Accuracy measures for evaluating computer pointing devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Cursor measures for motion-impaired computer users
Proceedings of the fifth international ACM conference on Assistive technologies
Designing for dynamic diversity: interfaces for older people
Proceedings of the fifth international ACM conference on Assistive technologies
Designing human-computer interfaces for quadriplegic people
ACM Transactions on Computer-Human Interaction (TOCHI)
Perception and haptics: towards more accessible computers for motion-impaired users
Proceedings of the 2001 workshop on Perceptive user interfaces
Mouse movements of motion-impaired users: a submovement analysis
Assets '04 Proceedings of the 6th international ACM SIGACCESS conference on Computers and accessibility
Characterising user capabilities to support inclusive design evaluation
Universal Access in the Information Society
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
ACM Transactions on Accessible Computing (TACCESS)
Automatically detecting pointing performance
Proceedings of the 13th international conference on Intelligent user interfaces
Performance-based functional assessment: an algorithm for measuring physical capabilities
Proceedings of the 10th international ACM SIGACCESS conference on Computers and accessibility
Automated stress detection using keystroke and linguistic features: An exploratory study
International Journal of Human-Computer Studies
Assessing Fit of Nontraditional Assistive Technologies
ACM Transactions on Accessible Computing (TACCESS)
Performance-based functional assessment: integrating multiple perspectives
Proceedings of the 12th international ACM SIGACCESS conference on Computers and accessibility
Representing users in accessibility research
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The effect of hand strength on pointing performance of users for different input devices
The proceedings of the 13th international ACM SIGACCESS conference on Computers and accessibility
Representing users in accessibility research
ACM Transactions on Accessible Computing (TACCESS)
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Understanding and describing the physical capabilities of users with motor impairments is a significant challenge for accessibility researchers and system designers alike. Current practice is to use descriptors such as medical diagnoses to represent a person’s physical capabilities. This solution is not adequate due to similarities in functional capabilities between diagnoses as well as differences in capabilities within a diagnosis. An alternative is user self-reporting or observation by another person, but these solutions can be problematic because they rely on individual interpretations of capabilities and may introduce unwanted bias. The current research focuses on defining an objective, quantifiable, repeatable, and efficient methodology for assessing an individual’s physical capabilities in relation to use of information technologies. Thirty-one users with a range of physical capabilities participated in the evaluation of the proposed performance-based functional assessment methodology. Building on the current standard for such assessments, multiple observers provided independent assessments that served as the gold standard for comparison. Promising metrics produced through the performance-based assessment were identified through comparisons with these observer evaluations. Predictive models were then generated via regression and correlation analysis. The models were validated using a three-fold validation process. Results from this initial research are encouraging, with the resulting models explaining up to 92% of the variance in user capabilities. Directions for future research are discussed.