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Evaluating visualizations: do expert reviews work?

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2 Author(s)
Tory, M. ; British Columbia Univ., Vancouver, BC, Canada ; Moller, T.

Visualization research generates beautiful images and impressive interactive systems. Emphasis on evaluating visualizations is growing. Researchers have successfully used alternative evaluation techniques in human-computer interaction (HCI), including focus groups, field studies, and expert reviews. These methods tend to produce qualitative results and require fewer participants than controlled experiments. In this article, we focus on expert reviews that we used for the applications. We commonly use expert reviews to assess interface usability. Expert reviews can generate valuable feedback on visualization tools. We recommend i) including experts with experience in data display as well as usability, and ii) developing heuristics based on visualization guidelines as well as usability guidelines. Expert reviews should not be used exclusively, since experts might not hilly predict end-user actions. Furthermore, we encourage more experimentation with this technique, particularly to develop a good set of visualization heuristics and to compare it with other methods.

Published in:

Computer Graphics and Applications, IEEE  (Volume:25 ,  Issue: 5 )

Date of Publication:

Sept.-Oct. 2005

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