QFD / House of Quality
Updated 2026-08-13
INTRODUCTION
English translation pending.
CORE DEFINITION
Quality Function Deployment is a planning method that converts customer requirements into technical characteristics and design requirements, organized in a House of Quality matrix that links needs to engineering parameters, correlation strengths, and competitive benchmarks. The key qualification is that the matrix is a cross-functional discussion tool: its value comes from the negotiation between marketing and engineering, not from the completed document alone.
SCAFFOLDING EFFECT
Reduce cognitive load
- Voice capture: collect and rank customer needs by importance before any engineering starts. - Translation matrix: map each need to engineering characteristics and rate the linkage strength. - Priority focus: select the few characteristics that most strongly serve the top-ranked needs.
Anchor fast decisions
Customer needs and engineering parameters live in different vocabularies, so unaided teams optimize what they can measure rather than what customers value. The matrix forces every need to be paired with measurable characteristics and scored, making trade-offs visible and traceable, while the competitive benchmark column exposes where the product already lags.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Quality_function_deploymentverified
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