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| Criterion |  Architecture C4 Model |  Architecture Architecture Decision Record |  Agile Start Stop Continue |  Agile Sailboat Retrospective |
|---|---|---|---|---|
Purposedifferent | 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 1-4 h | 15-45 min | 30-60 min | 45-90 min |
Participantsdifferent | 1-5 | 1-3 | 3-12 | 4-12 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | ADR File, Decision Log, Rationale | Start Stop Continue Board, Improvement Actions | Sailboat Board, Risks, Improvement Actions |
Tagsno overlap | ArchitectureCommunicationVisualization | ArchitectureRationaleDocumentationGovernance | RetrospectiveImprovementTeamReflection | RetrospectiveTeamImprovement |