Modified control-response ratio for move and rotation operations on a large multi-touch interface

Wenzhi Chen, Chun Wen Chen, Kuan Hung Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study focused on the effect of the control-response ratio (C/R ratio) of a multi-touch interface for move and rotation operations. The experiments were conducted to collect data on user performance and subjective evaluation to analyze the effects of five levels of the C/R ratio. Forty-five participants, 15 male and 30 female, were given tasks to complete. The results showed that in overall operations, subjective satisfaction was highest with the C/R ratio 1/1, but in the usability analysis among the C/R ratios 1/1, 1/2, and 2/1, there was no significant difference. Specific operations that analyzed the effects of the C/R ratio showed in the move operations the best C/R ratio was located between 1/1 and 1/2, and in the rotation operations, the difference among the C/R ratios 2/1, 1/1, and 1/2 was not significant. The best C/R ratio might be located among the three values. The results show that on a mid-size multi-touch screen, a modified C/R ratio may help users in pan and rotation operations to improve performance and satisfaction.

Original languageEnglish
Title of host publicationUniversal Access in Human-Computer Interaction
Subtitle of host publicationDesign Methods, Tools, and Interaction Techniques for eInclusion - 7th Int. Conf., UAHCI 2013, Held as Part of HCI Int. 2013, Proceedings
PublisherSpringer Verlag
Pages446-453
Number of pages8
EditionPART 1
ISBN (Print)9783642391873
DOIs
StatePublished - 2013
Event7th International Conference on Universal Access in Human-Computer Interaction: Design Methods, Tools, and Interaction Techniques for eInclusion, UAHCI 2013, Held as Part of 15th International Conference on Human-Computer Interaction, HCI 2013 - Las Vegas, NV, United States
Duration: 21 07 201326 07 2013

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 1
Volume8009 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference7th International Conference on Universal Access in Human-Computer Interaction: Design Methods, Tools, and Interaction Techniques for eInclusion, UAHCI 2013, Held as Part of 15th International Conference on Human-Computer Interaction, HCI 2013
Country/TerritoryUnited States
CityLas Vegas, NV
Period21/07/1326/07/13

Keywords

  • C/R ratio
  • large touchscreen
  • multi-touch

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