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This reminds me of what we've been doing for a while, the "blameless postmortem." The technique is championed by Etsy, and you can read more about it in an arti
by sethammons 8y ago
This reminds me of what we've been doing for a while, the "blameless postmortem." The technique is championed by Etsy, and you can read more about it in an article that introduces their debriefing guide:
https://codeascraft.com/2016/11/17/debriefing-facilitation-guide/ https://codeascraft.com/2016/11/17/debriefing-facilitation-g...
From the linked PDF from the article:
> “Adaptability and learning. We learn through honest, blameless reflection on lessons and surprises. We believe that traditional root cause analysis makes learning from mistakes difficult. Our blameless post-mortem process is a widely-cited technique that we believe is becoming best practice among organizations that value innovation. Blameless postmortems drive a significant percentage of our development as we analyze what about our production environment was less than optimal and rapidly make corresponding adjustments.”
(Etsy, Inc., 2015)
The idea, boiled down, is to inspect timelines, procedures, and actions and develop a narrative of how an incident came to be. The goal is for everyone to walk away with a (better) understanding of everything. With this, people are better armed to put into place solutions.
One example from the text is where an engineer pushes out a change because they thought the build system had zero failures. The push breaks the system and causes a regression that should have been caught in the tests. During the postmortem, the engineer says, "I thought the tests had zero failures. I guess I need to be more diligent in the future." Upon further timeline investigation, it is noted that the tests actually had eight failures, but the font had eights and zeros looking very similar. The fix was not "be more diligent;" the fix is maybe to have a better font or use colors for pass/fail.
Overall, I like the ideas proposed in this blameless postmorem style. It runs counter to the natural tendency to "find a problem and fix it" because it feels like we are talking less about the problem and the fix and talking more about the narrative of the failure. But what I've seen is folks gaining better understanding of how everyone else works, learning about tools and tricks, and about assumptions. And knowing more about the narrative leads to better solutions.
- dingaling 8y ago> Our blameless post-mortem process Theirs? Accident investigation agencies such as the AAIB and NTSB have been following "blameless" processes for decades. Find the causes and save lives. Who pressed the button or forgot to connect the oil line is irrelevant compared to the fact that the failure modes were possible.
- detaro 8y agoYes, their process, as in "the process they have implemented and documented", not as in "they've invented the concept". They widely reference prior art and experiences in other fields (e.g. the second sentence of the post the parent linked)