Translate a customer battery-life complaint into measurable design requirements and a trade-off-ready requirement set.
A portable speaker brief says, "Battery must last all day," but the team has no shared definition of all day. QFD translation: customer voice -> usage context -> measurable characteristics -> testable promise The common trap is to jump straight to a bigger battery or a softer marketing claim before defining the job and test condition. Customer voice Keep the original phrase: "It dies before the day is over." Add the situation: weekend travel, shared hotel room, no reliable outlet. Preserving the customer language keeps the emotional job visible while the situation prevents a generic battery target. Technical characteristics Translate…
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