Comparison
Incident reviewvsRestatement
Incident review
you sat down a week later with the timeline and worked out why the wrong dashboard was the obvious one to check.
The structured examination of an incident after it is over, producing a timeline, an understanding and a small number of owned actions. Its purpose is learning, not documentation: a review that produces a file nobody reads and eleven tickets nobody does has cost more than it returned. The best ones spend most of their time on why things made sense to the people involved at the time, because that is where the improvable system lives.
Full entry →Restatement
last quarter's published figures change after a backfill, and somebody has to tell the people who already presented them.
Publishing corrected values for a period that has already been reported. Technically it is a backfill; organisationally it is an announcement, because someone has made a decision or a filing based on the old number. The engineering consequence is that any table feeding published figures needs its versions to be reconstructible, so the change can be explained rather than merely applied.
Full entry →