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| Criterion |  Decision Making Pre-Mortem |  Decision Making Risk Matrix |  Architecture C4 Model |
|---|---|---|---|
Purposedifferent | 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. | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 20–45 min | 30-60 min | 1-4 h |
Participantsdifferent | Small cross-functional group | 3-10 | 1-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Risk list, Mitigation plan, Assumption log | Risk Matrix, Top Risk List | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | RiskDecisionFailurePlanning | RiskDecisionPrioritizationAssessment | ArchitectureCommunicationVisualization |
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