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| Criterion |  Operations 8D Problem Solving |  Agile Start Stop Continue |  Agile Sprint Retrospective |  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. | When a sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. | 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 | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 45–75 min |
Participantsdifferent | 4-10 | 3-12 | Scrum Team | 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 | Improvement actions, Team agreements | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | QualityProblem solvingRoot cause | RetrospectiveImprovementTeamReflection | RetrospectiveImprovementLearning | RetrospectiveLearningReflectionTeam |