QaZ keyboard

QWERTY based portrait soft keyboard

Hiroyuki Hakoda, Buntarou Shizuki, Jiro Tanaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In this paper, we present a QAZ keyboard, which is a QWERTY keyboard that facilitates one-handed thumb input for a mobile device with a large touchscreen. To design the keyboard, we first conducted experiments to investigate pointing performance on a large mobile touchscreen using one-handed thumb. The results showed that vertically long areas around the center of the touchscreen would be suitable to place a keyboard in terms of accuracy and time of pointing. Based on this finding, we designed and implemented the QAZ keyboard for Android-based devices. A longitudinal study with 4 participants showed that the mean text entry speed was 18.2wpm, and the mean error rate was 9.1%. Moreover, a comparative study of the QAZ keyboard compared to a QWERTY keyboard showed that the QAZ keyboard’s error rate was significantly lower than the QWERTY keyboard.

Original languageEnglish
Title of host publicationDesign, User Experience, and Usability: Technological Contexts - 5th International Conference, DUXU 2016 Held as Part of HCI International 2016, Proceedings
PublisherSpringer Verlag
Pages24-35
Number of pages12
Volume9748
ISBN (Print)9783319404059
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event5th International Conference on Design, User Experience, and Usability, DUXU 2016 Held as Part of 18th International Conference on Human-Computer Interaction, HCI International 2016 - Toronto, Canada
Duration: 2016 Jul 172016 Jul 22

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume9748
ISSN (Print)03029743
ISSN (Electronic)16113349

Other

Other5th International Conference on Design, User Experience, and Usability, DUXU 2016 Held as Part of 18th International Conference on Human-Computer Interaction, HCI International 2016
CountryCanada
CityToronto
Period16/7/1716/7/22

Fingerprint

Handed
Touch screens
Error Rate
Text Entry
Longitudinal Study
Mobile Devices
Comparative Study
Mobile devices
Experiment
Experiments
Design

Keywords

  • Mobile devices
  • One-handed interaction
  • Onehanded thumb
  • Pointing
  • Smartphone
  • Software keyboard
  • Text entry
  • Touch screen
  • Virtual keyboard

ASJC Scopus subject areas

  • Computer Science(all)
  • Theoretical Computer Science

Cite this

Hakoda, H., Shizuki, B., & Tanaka, J. (2016). QaZ keyboard: QWERTY based portrait soft keyboard. In Design, User Experience, and Usability: Technological Contexts - 5th International Conference, DUXU 2016 Held as Part of HCI International 2016, Proceedings (Vol. 9748, pp. 24-35). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 9748). Springer Verlag. https://doi.org/10.1007/978-3-319-40406-6_3

QaZ keyboard : QWERTY based portrait soft keyboard. / Hakoda, Hiroyuki; Shizuki, Buntarou; Tanaka, Jiro.

Design, User Experience, and Usability: Technological Contexts - 5th International Conference, DUXU 2016 Held as Part of HCI International 2016, Proceedings. Vol. 9748 Springer Verlag, 2016. p. 24-35 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 9748).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hakoda, H, Shizuki, B & Tanaka, J 2016, QaZ keyboard: QWERTY based portrait soft keyboard. in Design, User Experience, and Usability: Technological Contexts - 5th International Conference, DUXU 2016 Held as Part of HCI International 2016, Proceedings. vol. 9748, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 9748, Springer Verlag, pp. 24-35, 5th International Conference on Design, User Experience, and Usability, DUXU 2016 Held as Part of 18th International Conference on Human-Computer Interaction, HCI International 2016, Toronto, Canada, 16/7/17. https://doi.org/10.1007/978-3-319-40406-6_3
Hakoda H, Shizuki B, Tanaka J. QaZ keyboard: QWERTY based portrait soft keyboard. In Design, User Experience, and Usability: Technological Contexts - 5th International Conference, DUXU 2016 Held as Part of HCI International 2016, Proceedings. Vol. 9748. Springer Verlag. 2016. p. 24-35. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). https://doi.org/10.1007/978-3-319-40406-6_3
Hakoda, Hiroyuki ; Shizuki, Buntarou ; Tanaka, Jiro. / QaZ keyboard : QWERTY based portrait soft keyboard. Design, User Experience, and Usability: Technological Contexts - 5th International Conference, DUXU 2016 Held as Part of HCI International 2016, Proceedings. Vol. 9748 Springer Verlag, 2016. pp. 24-35 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
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