More good stuff from old notes.
"Symbols have been found to be recognized faster and more accurately than text (Ellis & Dewar, 1979). The graphical attributes of icons such as shape and color are very useful for quickly classifying objects, elements, or text by some common property (Gittens, 1986). An example of a good classification scheme that speeds up recognition are the icons developed for indicating the kind of message being presented to the user of the system. The text of an informational message is preceded by an "i" in a circle, a warning message by an exclamation point, and a critical message by another unique symbol. These icons allow speedy recognition of the type of message being presented."
- Page 15. -The Essential Guide to User Interface Design by Wilbert O. Galitz
"visualization is a cognitive process that allows people to understand information that is difficult to perceive, because it is either too voluminous or too abstract. It involves changing an entity's representation to reveal gradually the structure and/or function of the underlying system or process. Visualization is facilitated by presenting specialized graphic portrayals. The best visualization method for an activity depends on what people are trying to learn from the data. The goal is not necessarily to reproduce a realistic graphical image, but one that conveys the most relevant information. Effective visualizations can facilitate mental insights, increase productivity, and foster faster and more accurate use of data."
- Page 24. -The Essential Guide to User Interface Design by Wilbert O. Galitz
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