Three levels, all cheap:
- In the moment — one
LESSON:line in the daily note. - Per project — Lessons section inside every
PRJ -note (template built in). Filled at review comments and at close-out (the lessons-learned template). - Patterns — monthly review promotes repeated lessons into (a) a personal QA/QC checklist item, or (b) a permanent concept note.
Lesson format (make it reusable, not confessional)
Situation → What went wrong/right → Root cause → Rule I’ll follow → Where encoded (checklist/note)
A lesson that doesn’t change a checklist or a note isn’t captured yet — it’s just a memory, and memories fade by the next deadline.
Mistake log (running, brutally honest, private)
| Date | Project | Mistake | Caught by | Rule created |
|---|---|---|---|---|
See also: QAQC System · Project Close-Out and Lessons · Monthly Technical Growth Review