Record the decision and its assumptions
Start with the choice you need to make, the customer problem and the assumptions supporting the proposed direction. Keep the record short enough to maintain. Its purpose is to help the team remember why it believed the idea was worth pursuing.
Distinguish observation from interpretation
Record where evidence came from, what was observed and how the team interpreted it. Note important limitations, such as a small or narrow group of participants. This makes it easier to compare new findings with earlier reasoning without treating every note as equally conclusive.
Review what changes
When new evidence arrives, ask which assumption it supports or challenges. Update the decision and the next learning step. A useful log shows how understanding evolved; it should not become an archive of documents nobody consults.
Choose one decision your team is making now. Use the questions in this article to clarify the problem, evidence and next step.