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| Criterion |  Agile Start Stop Continue |  Delivery Communication Plan |  Agile Starfish Retrospective |  Agile 4Ls Retrospective |
|---|---|---|---|---|
Purposedifferent | 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 many people need to be informed in parallel and messages would otherwise arrive unevenly or too late, a Communication Plan orders communication reliably. Channels, audiences, and cadences interlock so important information doesn't get lost. | 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. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 30-60 min | 45-90 min | 45-90 min | 45–75 min |
Participantsdifferent | 3-12 | 2-6 | 4-12 | Team members involved |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Start Stop Continue Board, Improvement Actions | Communication Plan, Channel Matrix, Message Cadence | Starfish Board, Practice Changes, Experiments | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | RetrospectiveImprovementTeamReflection | CommunicationStakeholdersDeliveryPlanning | RetrospectiveImprovementExperimentsTeam | RetrospectiveLearningReflectionTeam |