Affordance

<p>Jun 16, 2011 12:51 PM

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An <b>affordance</b> is <b>a quality of an object, or an environment, that allows an individual to perform an actio</b>n.

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&#160;For example, <b>a knob affords twisting, and perhaps pushing, while a cord affords pullin</b>g.

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The original definition described all action possibilities that are physically possible

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This was then refined to describe<b> action possibilities of which an actor is awar</b>e.

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&#160;The term has further evolved for use in the context of HCI as<b> indicating the easy discoverability of possible action</b>s

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1977 &#160;JJ Gibson introduced the term &#160;in his article &#160;Thy of Affordances..

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his book &#160;The Ecological Approach to Visual Perception &#160;in 1979.

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always in relation to the ACTOR and the ACTOR's capabilities.

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false affordance: &#160;a placebo button. &#160;

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(how abt <b>opportunity to gamble or to trade stocks as a means of getting rich... NOT</b>!)</p>