Relative role of merging and two-handed operation on command selection speed

  • Authors:
  • Nicholas Y. Chen;Francois Guimbretière;Corinna E. Löckenhoff

  • Affiliations:
  • University of Maryland, 3252 A.V. Williams Building, College Park, MD 20742, USA;University of Maryland, 3252 A.V. Williams Building, College Park, MD 20742, USA;National Institute on Aging, USA

  • Venue:
  • International Journal of Human-Computer Studies
  • Year:
  • 2008

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Abstract

This paper examines the influence of two interface characteristics on command selection speed: the integration of command selection with direct manipulation (merging), and two-handed operation. We compared four interaction techniques representing combinations of these characteristics (Marking Menu, Two-handed Tool Palette, Toolglass, and Control Menu). Results suggest that the one-handed techniques selected for the present study produced a speed advantage over two-handed techniques, whereas the influence of merging was task dependent. A follow-up study examining Bimanual Marking Menu suggests that the performance of two-handed techniques may be reduced due to a split in visual attention required for certain techniques. Taken together, these findings have important implications for the design of command selection mechanisms for pen-based interfaces.