Understanding a Visual

Kirsten Robinson, at Dynamic Diagrams, mentioned how the Calliope Hummingbird visual took time to understand. The understandability of a visual is something we grapple with all the time. It is a subset of the challenge of making a tool that's use is obvious to the user -- or at least to their children. Kirsten knows what she is talking about and so her comment is more about this visual crossing the line between effort needed to learn to use and density of information presented. I think she is right.

The reason I was drawn to it was that the bird's cycles are continuous and so the circle expresses this better than a time-line. It is also hemispheric neutral in that time-lines start in January and finish in December and so for Southern birds their breeding season, for example, might cross the December and January year boundary and so, for those birds you would not see a continuous line but a line in two segments

          Jan Feb Mar Apr ... Oct Nov Dec
nesting   -------                 -------

It is also similar to the situation awareness visuals I have seen [1] and very much like.

Learning how to read this visual is not difficult and so a short audio training might be used. For example, this NPR story [2] is about the movie High Noon's title song and how its elements were repeated in the movie's score. Towards the end of the story there is a short segment of the score featured with overlaid commentary. It is a stunningly informative information presentation. At least to this musical klutz.

[1] "Visual Correlation for Situational Awareness" http://www.sci.utah.edu/publications/yarden05/VisAware.pdf

[2] "High Noon"