What concept, outlined in his seminal book, did Norman use to explain how a well-designed object intuitively communicates its function?

Answer

Affordances and Signifiers

Norman's book, The Design of Everyday Things, illustrated foundational concepts such as affordances and signifiers, explaining that physical characteristics of an object communicate its intended use.

What concept, outlined in his seminal book, did Norman use to explain how a well-designed object intuitively communicates its function?
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