Coffee maker House of Quality
A QFD House of Quality where the engine computes the technical-importance row (45 / 39 / 51) — the ranked answer to which engineering characteristic moves the most customer value — plus the diamond-cell roof that flags trade-offs between characteristics.
For the product engineer translating customer needs into specs
What this shows
The House of Quality — the core matrix of Akao's Quality Function Deployment — translates what customers want into the engineering characteristics that deliver it. Customer requirements (WHATs) are the rows, each with an importance weight; engineering characteristics (HOWs) are the columns; the body cells record how strongly each HOW serves each WHAT on the 9 / 3 / 1 strong-medium-weak scale.
The differentiator is the computed row at the foot of the house: each column's technical importance is the sum of weight × strength down that column, here 45 / 39 / 51 — so Insulation (51) is the highest-leverage characteristic to invest in and Heater watts (39) the lowest. (Add normalize: true to read these as 33% / 29% / 38% instead.) Above the columns, the roof is a half-matrix of diamond cells recording HOW-to-HOW correlations: roof (0,1): -- flags that lowering Fan RPM while raising Heater watts is a trade-off, while roof (1,2): + flags that Heater watts and Insulation reinforce each other.