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Existing devices for communicating information to computers are either bulky, slow, or unreliable. Dasher is a data entry interface incorporating language modelling and driven by continuous two-dimensional gestures, e.g. a mouse, a stylus, or eye-tracker. Tests have shown that, after an hour of practice, novice users reach a writing speed of about 20 words per minute while taking dictation. Experienced users achieve writing speeds of about 34 words per minute, compared with typical ten-finger keyboard typing of 40-60 words per minute.

Although the interface is slower than a conventional keyboard, it is simple to use, and could be used on personal data assistants and by motion-impaired computer users. Dasher can readily be used to enter text from any alphabet.


Dasher project on Sourceforge SourceForge Logo

Site last modified Mon Jun 9 15:01:44 BST 2003

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