Decision Logs: The Missing Artifact of High-Velocity Teams

Teams lose speed when they keep re-deciding the same things. That happens when decisions live in people’s heads, not in a shared artifact.

A decision log is the simplest fix. It’s a lightweight record of:

• what we decided
• why
• what we rejected
• what assumptions we made
• what we’ll revisit (and when)

A good decision log entry is 6 lines:

• Decision:
• Context:
• Options considered:
• Rationale:
• Tradeoff:
• Follow-ups / metrics:

Why it matters:

• new team members onboard faster
• stakeholders stop re-opening settled debates
• design/engineering can execute with confidence
• post-launch learning becomes easier (“were our assumptions right?”)

Decision logs also improve quality because they expose hidden reasoning. If the rationale is weak, you’ll see it immediately. If the tradeoff is unacceptable, you can address it early.

How to keep it from becoming bureaucracy:

• log only meaningful decisions (direction, scope, quality bar, rollout)
• keep entries short
• store it where the team works (Notion, Confluence, a shared doc)

Interview line:

“Velocity is often a memory problem. I use decision logs to make product reasoning durable, reduce churn, and keep teams aligned through iteration.”

That’s how you ship faster without losing your mind.