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| Criterion |  Decision Making Risk Matrix |  Architecture C4 Model |  Product Discovery Assumption Mapping |
|---|---|---|---|
Purposedifferent | 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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 30-60 min | 1-4 h | 45-60 min |
Participantsdifferent | 3-10 | 1-5 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Risk Matrix, Top Risk List | Context Diagram, Container Diagram, Component Diagram | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RiskDecisionPrioritizationAssessment | ArchitectureCommunicationVisualization | AssumptionsRiskExperimentsValidation |
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