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| Criterion |  Architecture arc42 |  DevOps Blameless Postmortem |  Agile Sailboat Retrospective |  Agile Starfish Retrospective |
|---|---|---|---|---|
Purposedifferent | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | When a team wants to read momentum, brakes, and risks together, it offers an easily understandable picture of the situation. It makes drive, obstacles, and headwind visible in the same picture. | 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. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 1-2 Tage | 30-90 min | 45-90 min | 45-90 min |
Participantsdifferent | 1-4 | 3-12 | 4-12 | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Postmortem Doc, Action Items, Timeline | Sailboat Board, Risks, Improvement Actions | Starfish Board, Practice Changes, Experiments |
Tagsno overlap | ArchitectureDocumentationCommunication | Site Reliability EngineeringIncidentLearningReliability | RetrospectiveTeamImprovement | RetrospectiveImprovementExperimentsTeam |