Archive for September, 2013

Linear Fractions

Monday, September 30th, 2013

I suspect that one of the reasons why people are drawn to pie charts is the fact that these charts are familiar from elementary school instruction in the meaning and mathematical use of fractions. Based on this instruction, a pie chart is the image that becomes strongly associated with the parts-of-a-whole concept (a.k.a., fractions). But, […]

Data Visualization and the Blind

Monday, September 16th, 2013

Recently, I received an email from a fellow name Mark Ostroff who has written a guide to designing “accessible” content using the Oracle Business Intelligence Suite (OBIEE). In particular, the guide addresses issues regarding impaired vision, such as colorblindness and total blindness. Despite the fact that Mark began by saying that he and I “could […]