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| Criterion |  Architecture C4 Model |  Decision Making Pre-Mortem |  Decision Making Red Teaming |
|---|---|---|---|
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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | For strategic decisions with high reach, agreement and gut feeling are often not enough. Red teaming brings deliberate opposition into the situation and tests where a plan breaks under real counterarguments. |
Complexitydifferent | Low | Low | High |
Timedifferent | 1-4 h | 20–45 min | 1-4 h |
Participantsdifferent | 1-5 | Small cross-functional group | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Risk list, Mitigation plan, Assumption log | Challenge Findings, Risk Register, Mitigation Plan |
Tagsno overlap | ArchitectureCommunicationVisualization | RiskDecisionFailurePlanning | RiskDecisionSensemaking |
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