Few-key text entry revisited: mnemonic gestures on four keys


We present a new 4-key text entry method that, unlike most few-key methods, is gestural instead of selection-based. Importantly, its gestures mimic the writing of Roman letters for high learnability. We compare this new 4-key method to predominant 3-key and 5-key methods theoretically using KSPC and empirically using a longitudinal study of 5 subjects over 10 sessions. The study includes an evaluation of the 4-key method without any on-screen visualization-an impossible condition for the selection-based methods. Our results show that the new 4-key method is quickly learned, becoming faster than the 3-key and 5-key methods after just ~10 minutes of writing, although it produces more errors. Interestingly, removing a visualization of the gestures being made causes no detriment to the 4-key method, which is an advantage for eyes-free text entry.

DOI: 10.1145/1124772.1124846

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@inproceedings{Wobbrock2006FewkeyTE, title={Few-key text entry revisited: mnemonic gestures on four keys}, author={Jacob O. Wobbrock and Brad A. Myers and Brandon Rothrock}, booktitle={CHI}, year={2006} }