8D Problem Solving
Updated 2026-08-09
INTRODUCTION
English translation pending.
CORE DEFINITION
8D is a team-based problem-solving method used mainly in manufacturing and quality management. Its disciplines run from D0 preparation, D1 team formation, D2 problem description, D3 containment, D4 root cause analysis, D5 permanent corrective action, D6 verification, D7 prevention of recurrence, to D8 team recognition. The distinctive step is D7, which requires changing procedures and systems rather than only fixing the failed unit, so the same problem cannot reappear elsewhere. The method treats an incident as a defect in the management system rather than only in the product.
SCAFFOLDING EFFECT
Reduce cognitive load
- Contain first: stop the bleeding with an interim fix before investigating causes. - Dig to the root: use repeated why questions until the system cause appears. - Change the system: at D7 rewrite the procedure so the defect cannot recur anywhere.
Anchor fast decisions
A cross-functional team first stops the damage with containment, then works backwards from the symptom to the root cause using structured questioning. Once the cause is known, a permanent corrective action is implemented and verified against the original problem. The critical move is D7: the team rewrites the process, standard or check that allowed the defect, which converts a single incident into an immunity for the wider system. Because the change is institutional rather than personal, the fix survives staff turnover.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
account_treeGenealogyexpand_more
menu_bookReferencesexpand_more
Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Eight_disciplines_problem_solvingverified
PRIVATE NOTES · Only visible to you
SAVED Q&A
ENTRY Q&A · Private saving available
Ask with a clear boundary
thinkingmodels answers from published entry context only.
Your question is sent to thinkingmodels. The answer uses public entry context only.
RELATED MODELS