An investigation of dynamic landmarking functions

Authors:
Philip Quinn;Andy Cockburn; Indratmo;Carl Gutwin
Affiliations:
University of Canterbury, Christchurch, New Zealand;University of Canterbury, Christchurch, New Zealand;University of Saskatchewan, Saskatoon, Canada;University of Saskatchewan, Saskatoon, Canada
Venue:
AVI '08 Proceedings of the working conference on Advanced visual interfaces
Year:
2008

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Abstract

It is easy for users to lose awareness of their location and orientation when navigating large information spaces. Providing landmarks is one common technique that helps users remain oriented, alleviating the mental workload and reducing the number of redundant interactions. But how many landmarks should be displayed? We conducted an empirical evaluation of several relationships between the number of potential landmarked items in the display and the number of landmarks rendered at any one time, with results strongly favouring a logarithmic relationship.