A study of input device manipulation difficulties
Assets '96 Proceedings of the second annual ACM conference on Assistive technologies
Haptic output in multimodal user interfaces
Proceedings of the 2nd international conference on Intelligent user interfaces
Differences in movement microstructure of the mouse and the finger-controlled isometric joystick
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Accuracy measures for evaluating computer pointing devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
ACM Transactions on Accessible Computing (TACCESS)
Investigating Grid-Based Navigation: The Impact of Physical Disability
ACM Transactions on Accessible Computing (TACCESS)
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This paper describes a study of the cursor trajectories of motion-impaired users in "point and click" interactions. A characteristic of cursor movement is proposed that aims to capture the spatial distribution of cursor movement about a target. This characteristic indicates that users often exhibit increased cursor movement in the vicinity of the target, have more difficulty performing the "clicking" part of the interaction as compared to the navigation part, and tend to navigate directly toward the target during the middle portion of the cursor trajectory. The implications of these characteristic behaviours on interface design are discussed.