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subject > criterion > quality > software quality > external software quality > usefulness > utility^2
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utility^2 comparison table
Subject has definition see also is a kind of
usefulnessThe extent to which a system can be used to perform a task; combines usability and utility^2 measurement
utility^2The extent to which, independent of usability, a product or process provides capabilities needed to solve a customer's problemutilityusefulness

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