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| Criterion |  Agile 4Ls Retrospective |  Architecture C4 Model |  Agile Starfish Retrospective |
|---|---|---|---|
Purposedifferent | 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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 45–75 min | 1-4 h | 45-90 min |
Participantsdifferent | Team members involved | 1-5 | 4-12 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | 4Ls Board, Learning Themes, Improvement Actions | Context Diagram, Container Diagram, Component Diagram | Starfish Board, Practice Changes, Experiments |
Tagsno overlap | RetrospectiveLearningReflectionTeam | ArchitectureCommunicationVisualization | RetrospectiveImprovementExperimentsTeam |
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