Quality Function Deployment in Product Design

Quality Function Deployment is a structured method for translating what customers want into concrete engineering and design decisions, giving development teams a systematic way to close the gap between market expectations and product specifications. Originally developed in Japan in the late 1960s, it has since expanded beyond manufacturing into service design, supply chain coordination, and strategic planning, often combined with fuzzy logic to handle the imprecision inherent in human preference data. Researchers are actively working on how to weigh competing customer requirements more rigorously, particularly when stakeholder groups disagree or when priorities shift across a product's lifecycle. An open challenge is integrating QFD more tightly with upstream supply chain decisions, so that supplier capabilities and constraints are accounted for at the same stage as customer needs rather than treated as a separate downstream concern.

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Keywords

Quality Function DeploymentQFDFuzzy LogicCustomer RequirementsProduct DesignStrategic Management