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Semantic constraints in product design refer to the use of meaning or context to limit or guide actions. They rely on the user's knowledge about the world and the situation to understand what actions are possible. For example, a red button on a machine might imply 'stop' or 'emergency' due to the common association of red with these concepts. This is a semantic constraint as it uses the user's understanding of the meaning of the color red in that context to guide their actions.
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There are four kinds of constraints. Physical, which use properties of the physical world to suggest action; cultural, which are based on cultural norms, because "each culture has a set of allowable actions for social situations"; semantic, which rely on the meaning of a given situation to control the set of possible actions; and logical, which use good-old logic to take advantage of the logical relationships between "the spatial or functional layout of components and the things that they affect or are affected by."
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How do designers improve their products to work around flaws in human logic? In The Design of Everyday Things, Don Norman teaches the top frameworks b...
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