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| Criterion | ![]() Operations 8D Problem Solving | ![]() Agile Start Stop Continue | ![]() Operations 5 Whys | ![]() Agile 4Ls Retrospective |
|---|---|---|---|---|
Purposedifferent | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | When a team wants to deliberately adjust its working behavior, it makes habits visible and assessable. It focuses on concrete changes instead of diffuse mood. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. |
Complexitydifferent | High | Low | Low | Low |
Timedifferent | 1-6 Wochen | 30-60 min | 15-30 min | 45–75 min |
Participantsdifferent | 4-10 | 3-12 | 2-6 | Team members involved |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Start Stop Continue Board, Improvement Actions | Root cause notes, Countermeasures | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | QualityProblem solvingRoot cause | RetrospectiveImprovementTeamReflection | Root causeIncidentLeanProblem solving | RetrospectiveLearningReflectionTeam |



