form follows behavior

Josh On, They Rule

All visualization begins with a hypothesis. As previously determined, visualization is an expressive medium, and as such aims to communicate abstract ideas through the use of data. Any successful visualization, therefore, allows drawing conclusions about the underlying data. These conclusions, while often revealing or surprising even for the author of the piece, are nonetheless driven by a particular hypothesis—a hypothesis as general as simply selecting a type or range of data for its perceived interest- or insight-generating qualities, or as specific as setting out to prove a certain claim based on the characteristics of the data source.

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The design of information can be understood as visual rhetoric. While often used in the pejorative sense, rhetoric means the art of speech and writing. As Hugues C. Boekraad writes in his essay in Copy Proof, rhetoric lessens or erases the distance between the message and the recipient. That is what communication design, at least in practice, sets out to achieve, and information design should be no different. The quality of the message being communicated is entirely dependent on intent, or, in other words, visual rhetoric.

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