For Anyone who wants to learn from projects, launches, events or mistakes

After-Action Review Template: What Happened, Why, What to Change

Four questions first used by the US Army after missions: what was supposed to happen, what actually happened, why it was different, and what to keep or change. Facts first, then lessons, no blame.

Uses the after-action review, a debrief format with solid research behind it. See the sources

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When to use it

  • Right after a project, launch, event or incident
  • After a conversation that didn't go as planned
  • At the end of a sprint or a busy week

What it's based on

Four questions first used by the US Army after missions: what was supposed to happen, what happened, why, and what to change. Meta-analyses of debriefs like this show solid performance gains, mostly in teams.

Research-backed

Built on a technique that's been tested in published studies. The sources below say how strong that evidence is.

Individual, self-led use is less studied than team debriefs.

Sources

How to use it well

  1. Do it soon, while details are fresh

  2. Write what was supposed to happen before what actually happened

  3. Look for causes, not culprits

  4. Turn 'what to change' into a concrete action you can tick off

FAQ

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Claude MonetImpression, Sunrise, 1872