Depth and breadth away from the desktop: the optimal information hierarchy for mobile use

  • Authors:
  • Arjan Geven;Reinhard Sefelin;Manfred Tscheligi

  • Affiliations:
  • CURE - Center for Usability Research and Engineering, Vienna, Austria;CURE - Center for Usability Research and Engineering, Vienna, Austria;CURE - Center for Usability Research and Engineering, Vienna, Austria & University of Salzburg, Salzburg, Austria

  • Venue:
  • Proceedings of the 8th conference on Human-computer interaction with mobile devices and services
  • Year:
  • 2006

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Abstract

The optimal way to structure information in hierarchies has occupied researchers for at least two decades. In the last few years, mobile devices added new challenges to this research: the limited screen size, navigation methods and data transfer rates make the search for the optimal information structure even more complex. In this paper an experiment is presented that investigates the usability of 4 different information hierarchies (46, 84, 163 and 642) on three mobile devices. It turns out that the narrow hierarchies (46 and 84) perform better than the broader hierarchies on the three devices. The experiment was repeated on two more occasions with the same participants to test expertise effects; the preference for narrow hierarchies did not change over the three occasions.