jm + john-allspaw   4

'STELLA Report from the SNAFUcatchers Workshop on Coping With Complexity', March 14-16 2017
'A consortium workshop of high end techs reviewed postmortems to better understand how engineers cope with the complexity of anomalies (SNAFU and SNAFU catching episodes) and how to support them. These cases reveal common themes regarding factors that produce resilient performances. The themes that emerge also highlight opportunities to move forward.'

The 'Dark debt' concept is interesting here.
complexity  postmortems  dark-debt  technical-debt  resilience  reliability  systems  snafu  reports  toread  stella  john-allspaw 
7 days ago by jm
The Infinite Hows, instead of the Five Whys
John Allspaw with an interesting assertion that we need to ask "how", not "why" in five-whys postmortems:
“Why?” is the wrong question.

In order to learn (which should be the goal of any retrospective or post-hoc investigation) you want multiple and diverse perspectives. You get these by asking people for their own narratives. Effectively, you’re asking “how?“

Asking “why?” too easily gets you to an answer to the question “who?” (which in almost every case is irrelevant) or “takes you to the ‘mysterious’ incentives and motivations people bring into the workplace.”

Asking “how?” gets you to describe (at least some) of the conditions that allowed an event to take place, and provides rich operational data.
ops  five-whys  john-allspaw  questions  postmortems  analysis  root-causes 
november 2014 by jm
Counterfactual Thinking, Rules, and The Knight Capital Accident
John Allspaw with an interesting post on the Knight Capital disaster
john-allspaw  ops  safety  post-mortems  engineering  procedures 
october 2013 by jm

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