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| Criterion |  Decision Making Pre-Mortem |  Architecture C4 Model |  Architecture Risk Storming |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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. | 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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 20–45 min | 1-4 h | 60-90 min | 45-90 min |
Participantsdifferent | Small cross-functional group | 1-5 | 4-12 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Risk list, Mitigation plan, Assumption log | Context Diagram, Container Diagram, Component Diagram | Annotated Diagram, Prioritized Risk List, Action Backlog | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | RiskDecisionFailurePlanning | ArchitectureCommunicationVisualization | RiskArchitectureWorkshopValidation | AssumptionsRiskDecisionDiscovery |