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| Criterion |  Agile Starfish Retrospective |  Operations Kaizen Event |  Operations A3 Problem Solving |  Operations PDCA Cycle |
|---|---|---|---|---|
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 a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 45-90 min | 0.5-5 Tage | 45-90 min | 1 h bis mehrere Wochen |
Participantsdifferent | 4-12 | 4-10 | 2-5 | 1-8 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Starfish Board, Practice Changes, Experiments | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | A3 Report, Action Plan, Root Cause Analysis | PDCA Log, Experiment Plan, Learning Outcome, Standard Change |
Tagsno overlap | RetrospectiveImprovementExperimentsTeam | LeanContinuous improvementOperations | LeanProblem solvingCoachingOperations | Continuous improvementLeanExperiments |