Improving text entry performance on tablet devices

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dc.contributor.authorRodrigues, Élvioen_US
dc.contributor.authorCarreira, Micaelen_US
dc.contributor.authorGonçalves, Danielen_US
dc.contributor.editorMagalhães, Luís and Santos, Beatrizen_US
dc.date.accessioned2020-12-11T13:39:54Z
dc.date.available2020-12-11T13:39:54Z
dc.date.issued2020
dc.description.abstractIn order to improve the text entry speed and error rate on tablet devices, we developed and tested 5 virtual keyboard variants. Some variants try to avoid errors by highlighting the next four most probable keys, either by changing its width or its color. Other variants were designed to decrease neighbor substitution errors, by shifting users' taps or by increasing the underlying area of the keys, based on its probability. The developed keyboards were tested by twenty young adults. Results show that soft keyboards without visual changes are the fastest method for text entry. Also, the use of word prediction further decreases typing speed, without improving the error rate. The Shifted and Size Invisible variants reduced neighbor substitution errors by 48.65% and 62.96%, respectively. Further improvements on error rate remain possible if we combine the strengths of multiple variants into one single variant.en_US
dc.description.sectionheadersUsabilidade e Acessibilidade
dc.description.seriesinformation5a Conferência Nacional sobre Interação
dc.identifier.doi10.2312/pt.20131347
dc.identifier.isbn978-3-03868-131-1
dc.identifier.pages135-142
dc.identifier.urihttps://doi.org/10.2312/pt.20131347
dc.identifier.urihttps://diglib.eg.org:443/handle/10.2312/pt20131347
dc.publisherThe Eurographics Associationen_US
dc.subjectText
dc.subjectentry performance
dc.subjectmulti
dc.subjecttouch tablets
dc.subjecttyping speed
dc.subjecterror types
dc.subjectpre
dc.subjectattentive interfaces
dc.titleImproving text entry performance on tablet devicesen_US
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Portuguese Meeting on Computer Graphics 2013