Abstract
This paper presents a user study comparing two methods for keyboard-driven mouse replacement: CKM, an active Conventional Keyboard Mouse, and DualMouse, an innovative keyboard technique allowing stepwise, recursive target acquisition. Both strategies are implemented in the pointing component of OnScreenDualScribe, a comprehensive assistive software system that turns a compact keypad into a universal input device. The study involves eight non-disabled participants and a single user with Friedreich Ataxia. The results reveal that CKM yields about 60 % higher throughput that DualMouse. However, the DualMouse technique is preferable for certain specific tasks. Our intention with this research is to gain new insights into OnScreenDualScribe and to inspire future developers of mouse-replacement interfaces for persons with physical disabilities.
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Notes
- 1.
Each participant also did one post-experiment block of trials using a mouse. The mean throughput for the mouse trials was 4.26 bits/s.
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Acknowledgments
This work is partially supported by DFG grant FE 936/6-2 “EFFENDI – EFficient and Fast text ENtry for persons with motor Disabilities of neuromuscular orIgin”.
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Felzer, T., MacKenzie, I.S., Magee, J. (2016). Comparison of Two Methods to Control the Mouse Using a Keypad. In: Miesenberger, K., Bühler, C., Penaz, P. (eds) Computers Helping People with Special Needs. ICCHP 2016. Lecture Notes in Computer Science(), vol 9759. Springer, Cham. https://doi.org/10.1007/978-3-319-41267-2_72
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