Postmortem
Noun · Slang & Abbreviations
Definitions
A written analysis conducted after a production incident, documenting what happened, why, how it was resolved, and what will be done to prevent recurrence. Good postmortems are blameless; great postmortems actually lead to change.
In plain English: A report written after something breaks in production, analyzing what went wrong and how to prevent it next time — an autopsy for failed systems.