Understanding contributes to the effectiveness of a product by ensuring that the user knows how to use the product and what each of its controls and settings mean. This leads to better user experience and satisfaction, which in turn increases the product's effectiveness. Understanding also helps in designing a product that is intuitive and easy to use, which can reduce the need for extensive user training and support.
How do designers improve their products to work around flaws in human logic? In The Design of Everyd...
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