An Evaluation of Pan&Zoom and Rubber Sheet Navigation with and without an Overview
Dmitry Nekrasovski, Adam
Bodnar, Joanna McGrenere, Francois Guimbretiere, Tamara Munzner.
Proc. ACM CHI 06, p 11-20
We present a study that evaluates conventional Pan and Zoom Navigation and
Rubber Sheet Navigation, a rectilinear Focus+Context technique. Each of the
two navigation techniques was evaluated both with and without an overview.
All interfaces guaranteed that regions of interest would remain visible, at
least as a compressed landmark, independent of navigation actions.
Interfaces implementing these techniques were used by 40 subjects to
perform a task that involved navigating a large hierarchical tree dataset
and making topological comparisons between nodes in the tree. Our results
show that Pan and Zoom Navigation was significantly faster and required
less mental effort than Rubber Sheet Navigation, independent of the
presence or absence of an overview. Also, overviews did not appear to
improve performance, but were still perceived as beneficial by users. We
discuss the implications of our task and guaranteed visibility on the
results and the limitations of our study, and we propose preliminary design
guidelines and recommendations for future work.
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Last modified: Wed Sep 20 18:29:06 PDT 2006