This is a basic article which proposes a
'type by task taxonomy (TTT)' of infoviz. Here the author categorizes the
visualizations in seven data types and defines seven tasks to be performed on
the visualizations. The author underlines the Visual Information Seeking mantra
to be 'Overview first, zoom and filter, then details-on-demand'.
The author has described the data types
at a very introductory level without much in-depth discussion. The examples
given are good, but inclusion of some images and figures could have made the
understanding easier. The article explains tasks like Overview, zoom and filter
that are basic but probably the most important. The article also draws
attention to consider the tasks of history and extracts as important part of
Information visualization.
The end of the article however, seems to
lose the track and fails to reach a firm conclusion. That part could have been
better utilized to reinforce the relationship between the data types and tasks.
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