Clear documentation is key to an effective incident postmortem process. Many teams use a comprehensive template to collect consistent details during each postmortem review. Below is an example of an incident postmortem template, based on the postmortem outlined in our Incident Handbook. You can cut and paste these for documenting your own postmortems.
Write a summary of the incident in a few sentences. Include what happened, why, the severity of the incident and how long the impact lasted.