An affordance is what someone can do with an object. When you see a well-designed everyday product, the perceived affordances should indicate how to use it. You shouldn't have to struggle to figure out how to use your shower to take a shower, and you shouldn't have to use trial and error—perhaps drenching yourself in cold water in the process. The design of an everyday thing should make it evident. An object should communicate a good part of how to use it through its affordances.
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