01 Choose the customer problem
“starting with a deep understanding of people’s needs and desires” (opens the source)
A clear brief starts with a customer need. Interviews can explain a problem without telling you how common it is.
Choose the promise, critique the creative and test what people understood.
Start a practice interview“starting with a deep understanding of people’s needs and desires” (opens the source)
A clear brief starts with a customer need. Interviews can explain a problem without telling you how common it is.
“we need people around the world to understand this shift” (opens the source)
Name the change in customer understanding. Separate a verified feature from an attractive claim that nobody has proved.
“When girls don’t see it, they don’t believe it” (opens the source)
Connect the image, words and audience. Ask whose perspective shaped the brief before calling a polished concept effective.
“evaluating what actually creates incremental demand” (opens the source)
Recall, message understanding and stated intent answer different questions. A study cannot measure purchases it did not observe.
“El hogar es donde ponemos nuestras propias reglas” (opens the source)
Our translation: Home is where we set our own rules. Test what the local wording means to the intended audience.
Last reviewed Nov 10, 2026