Summary: Exploring the Design of Accessible
Goal Crossing Desktop Widgets
Prior work has shown that goal crossing may be a more
accessible interaction technique than conventional
pointing-and-clicking for motor-impaired users.
Although goal crossing with pen-based input devices
has been studied, pen-based designs have limited
applicability on the desktop because the pen can "fly
in," cross, and "fly out," whereas a persistent mouse
cursor cannot. We therefore explore possible designs
for accessible mouse-based goal crossing widgets that
avoid triggering unwanted goals by using secondary
goals, gestures, and corners and edges. We identify
four design principles for accessible desktop goal
crossing widgets: ease of use for motor-impaired users,
safety from false selections, efficiency, and scalability.
Keywords: Crossing-based interfaces, input, human
performance, mouse cursor, desktop accessibility,
motor impairments, computer access.