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| Criterion |  Architecture C4 Model |  Operations Learning Review |  Architecture Architecture Decision Record |
|---|---|---|---|
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. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. | 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. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 1-4 h | 1-3 h | 15-45 min |
Participantsdifferent | 1-5 | 3-10 | 1-3 |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Learning Review Notes, System Factors, Improvement Actions | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureCommunicationVisualization | LearningRetrospectiveIncidentOperations | ArchitectureRationaleDocumentationGovernance |
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