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Quality Function Deployment

Updated 22 Jul 2026

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def
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  a technique that translates the needs of the customer into technical requirements for software
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  emphasizes understanding what is valuable to the customer and deploying these values throughout the engineering process through functions, information, and tasks
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three types of requirements it identifies
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  normal requirements — objectives and goals stated by the customer during meetings
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  expected requirements — implicit to the product or system; so fundamental that the customer may not explicitly state them until the team fails to include them
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  exciting requirements — features that go beyond the customer's expectations and prove very satisfying when present
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related
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  Requirements Elicitation
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  Requirements Engineering

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