Abstract
This paper investigates text entry on mobile devices using only five-keys. Primarily to support text entry on smaller devices than mobile phones, this method can also be used to maximise screen space on mobile phones. Reported combined Fitt's law and keystroke modelling predicts similar performance with bigram prediction using a five-key keypad as is currently achieved on standard mobile phones using unigram prediction. User studies reported here show similar user performance on five-key pads as found elsewhere for novice nine-key pad users.
Original language | English |
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Pages (from-to) | 589-598 |
Number of pages | 9 |
Journal | Personal and Ubiquitous Computing |
Volume | 12 |
Issue number | 8 |
Early online date | 10 Aug 2007 |
DOIs | |
Publication status | Published - 30 Nov 2008 |
Keywords
- predictive text entry
- user modelling
- user testing
- mobile phones
- ubiquitous computing