AIB 2006-16: Selexels: a Conceptual Framework for Pointing Devices with Low Expressiveness

The following technical report is available from
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Selexels: a Conceptual Framework for Pointing Devices with Low Expressiveness
Rafael Ballagas, Jan Borchers
AIB 2006-16

As human-computer interaction extends beyond the desktop, the need emerges
for new input devices and interaction techniques. However, many novel
interaction techniques must be prototyped in a proof-of-concept form,
and can suffer from low expressiveness: their ability to convey the
intended meaning is limited. We present a new conceptual framework based
on selexels that allows application designers to match the expressiveness
of the user interface to that of the input device. This allows the user
interface to provide a fluid user experience despite the limitations
of the input device. A user study validates the framework, shows that
selexel-based pointing tasks can be modeled using Fitts' Law, and provides
insights for structuring evaluations of prototype input devices.

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