Documentation Best Practices

Summary

Writing down what a query does, why a metric is defined the way it is, and where data comes from — so the next person (often future-you) doesn't have to reverse-engineer it.

• 1Add a comment header to your last 3 SQL scripts explaining their purpose.
• 2Start a simple metrics glossary defining your team's key terms consistently.
• 3Learn to document assumptions, not just steps — the 'why', not just the 'what'.