| http://www.w3.org/ns/prov#value | - ion of the data-ink ratio defined by Edward Tufte to the field of interface design, and is basically the ratio of pixels used to represent data to all pixels in the UI. I suppose one could refine the definition to include things like contrast with surrounding pixels and so on, but you get the picture.So anyway, this data-pixel ratio is a pretty fascinating metric to try to optimize for.
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