Affordance

At a very simple level, to afford means to give a clue (Norman, 1988). When the affordances of a physical object are perceptually obvious it is easy to know how to interact with it.

Don Normans’ Design Principles

The library card scanner in the San Mateo County Library in Woodside, CA where my parents have moved to, is a good example of Don Normans design principle of Affordance. It guides the user on how to operate the scanner by showing an image of the library card and exactly where to hold it so it scans.

Great idea!

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