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| Criterion |  Agile Starfish Retrospective |  Operations 8D Problem Solving |  Operations 5 Whys |  Agile Start Stop Continue |
|---|---|---|---|---|
Purposedifferent | When improvement options need to be sorted more finely than just start and stop, it brings observations into clear kinds of action. This makes visible what should be done more, less, newly, or continued. | 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. | 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 team wants to deliberately adjust its working behavior, it makes habits visible and assessable. It focuses on concrete changes instead of diffuse mood. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 45-90 min | 1-6 Wochen | 15-30 min | 30-60 min |
Participantsdifferent | 4-12 | 4-10 | 2-6 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Starfish Board, Practice Changes, Experiments | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Root cause notes, Countermeasures | Start Stop Continue Board, Improvement Actions |
Tagsno overlap | RetrospectiveImprovementExperimentsTeam | QualityProblem solvingRoot cause | Root causeIncidentLeanProblem solving | RetrospectiveImprovementTeamReflection |