ABSTRACT
Two groups of participants (novice and advanced) completed a study comparing a prototype game controller to a standard game controller for point-select tasks. The prototype game controller replaces the right analog stick of a standard game controller (used for pointing and camera control) with a trackball. We used Fitts' law as per ISO 9241--9 to evaluate the pointing performance of both controllers. In the novice group, the trackball controller's throughput was 2.69 bps -- 60.1% higher than the 1.68 bps observed for the standard controller. In the advanced group the trackball controller's throughput was 3.19 bps -- 58.7% higher than the 2.01 bps observed for the standard controller. Although the trackball controller performed better in terms of throughput, pointer path was more direct with the standard controller.
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Index Terms
- The trackball controller: improving the analog stick
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