Improving the accuracy of touch screens: an experimental evaluation of three strategies
CHI '88 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Language modeling for soft keyboards
Proceedings of the 7th international conference on Intelligent user interfaces
Shorthand writing on stylus keyboard
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Metrics for text entry research: an evaluation of MSD and KSPC, and a new unified error metric
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Phrase sets for evaluating text entry techniques
CHI '03 Extended Abstracts on Human Factors in Computing Systems
Performance of menu-augmented soft keyboards
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Target size study for one-handed thumb use on small touchscreen devices
Proceedings of the 8th conference on Human-computer interaction with mobile devices and services
Analyzing the input stream for character- level errors in unconstrained text entry evaluations
ACM Transactions on Computer-Human Interaction (TOCHI)
Shift: a technique for operating pen-based interfaces using touch
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Escape: a target selection technique using visually-cued gestures
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
One-handed touch typing on a QWERTY keyboard
Human-Computer Interaction
KeyGliss: un clavier ambigu prédictif basé sur un appui-glissé
Conference Internationale Francophone sur I'Interaction Homme-Machine
KeyTilt: un clavier logiciel par inclinaison
Conference Internationale Francophone sur I'Interaction Homme-Machine
| Hi-index | 0.00 |
Finger-operated soft keyboards have recently appeared in mass-market products such as the Apple iPhone. These keyboards have a function that shows a zoomed version of the selected key enlarged and offset above the finger (hereafter zoom) so that the user can see the key under the finger. This function is often combined with a dictionary for automatic error correction. We wanted to measure the benefits of the zoom. The reason for this was that it does not do anything to the motor space in which the finger operates and therefore the performance benefits were in doubt. Even performance degradation could happen due to the need to process more visual feedback. We tested the zoom in a text entry experiment. After basic tests of finger accuracy and touch screen reliability, we compared a keyboard with and without the zoom. There were no clear differences in text entry rate and error rate. While not statistically significant, differences in user responses seem to indicate that the visual feedback of the zoom function is appreciated.