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2

There's a lot of misunderstanding about what affordances are. The definition I've come to from study of Norman and Gibson is that they are properties of things.** They are not objects; a door is not an affordance. They are not actions; pushing is not an affordance. Affordances are properties: hollowness, heaviness, solidity, etc. We perceive these ...


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Affordances are what an object can do (truth). Perceived affordances are what one thinks an object can do (perception). Signifiers make affordances clearer (closing the gap between truth and perception). Signifiers often reduce number of possible interpretations and/or make intended way of using an object more explicit. A grey link on the screen might ...


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Affordance has to exist, it is an implicit property of an object. Let me cite Norman (who is citing James J Gibson): ...the actions possible by a specific agent on a specific environment. To Gibson, affordances did not have to be perceivable or even knowable -- they simply existed That's exactly the point, signifier without affordance is a mistake (a ...



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