An incident postmortem brings teams together to take a deeper look at an incident and figure out what happened, why it happened, how the team responded, and what can be done to prevent repeat incidents and improve future responses. Blameless postmortems do all this without any blame games.
In a blameless postmortem, it’s assumed that every team and employee acted with the best intentions based on the information they had at the time. Instead of identifying—and punishing—whoever screwed up, blameless postmortems focus on improving performance moving forward.
The actual point of blameless postmortems is to remove the fear of looking stupid, being reprimanded, or even losing your job with the ultimate goal of encouraging honest, objective and fact-centric communication that leads to better future outcomes.
Create a healthy culture between teams
Decrease the chances of ignoring incidents for fear of blame
Create an open, always-improving culture of learning
Increase support and communication
Free teams up to do their best work
Communicate an open, mistake-friendly approach up front