Visualization: What's normal?

Premise fw

One of the common problems in visualization UIs is that users need to know what's "normal" to put the data in perspective.

Expert users will have memorized normal ranges: doctors know what an elevated blood glucose level looks like. But even in these cases, a reminder is helpful to avoid mistakes.

So when I'm designing visualizations, I always try to put metrics into context. In this case, a simple 30-day and 7-day difference helps communicate that context and shows which price indices are deviating from normal.

This design was a prototype for Premise, which tracks macroeconomic and human development trends in real time.

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