A flexible on-screen keyboard: Dynamically adaptive for individuals' needs.
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Date
2007-01-01
Authors
Lin, Y. L.
Chen, M. C.
Wu, Y. P.
Yeh, Y. M.
Wang, H. P.
Journal Title
Journal ISSN
Volume Title
Publisher
Springer Berlin Heidelberg
Abstract
This study was to design an alternative on-screen keyboard and evaluate the efficacy of this innovative layout design for people with severe physical disability. The matrix keyboard layouts was designed based on human computer interaction. A repeated experiment was performed to compare the speed and accuracy of text entry with point-and-click input method between the matrix on-screen keyboard and the Windows XP QWERTY virtual keyboard. Data analysis revealed that the matrix on-screen keyboard provided better performance for the participant. The result also indicates that layout adaptation assessment is a valid tool to confirm proper layout size for users and that alphabetic order is better than QWERTY order for a novice user to learn a new on-screen keyboard. A usability study was undertaken to evaluation the performance of the double click instead of the point-and-click plus Shift key input method. The possible causes of the results and suggestions for further studies are discussed.