Good design can improve the functionality of a product by enhancing its discoverability and understanding. Discoverability refers to the ability of the user to figure out what actions are possible and how to perform them. Understanding refers to the user's comprehension of how the product is supposed to be used and what the different controls and settings mean. This involves the use of affordances, signifiers, constraints, mappings, and feedback. For example, a chair affords support, a flat panel on a door signifies one should push, constraints limit design possibilities, mappings specify functions, and feedback communicates an action.
How do designers improve their products to work around flaws in human logic? In The Design of Everyd...
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