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PointAssist: Analyzing Sub-Movement Characteristics to Aid in Pointing Tasks
Friday, Oct 16, 2009
4:00-5:00pm, 140 SH (Schaeffer Hall)
Abstract
Pointing tasks are at the foundation of interactions with graphical user
interfaces. Many populations including young children, older adults and
people with motor impairments have difficulty conducting pointing tasks on
computers. Many strategies have been discussed in the human-computer
interaction community to aid in pointing tasks. We present a different
approach in PointAssist, software that aids in pointing tasks by analyzing
the characteristics of sub-movements, detecting when users have difficulty
pointing, and triggering a precision mode that slows the speed of the cursor
in those cases. PointAssist is designed to help improve and maintain
pointing skills, runs as a background process working with existing
software, is not vulnerable to clusters of targets or targets in the way,
and does not modify the visual appearance or the feel of user interfaces. In
this presentation, we will describe PointAssist and discuss the results of
studies with young children, older adults, and adults with Parkinson's
Disease.
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