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| Criterion |  Decision Making Three-Point Estimation |  Decision Making PERT Estimation |  Architecture Architecture Communication Canvas |  Architecture C4 Model |
|---|---|---|---|---|
Purposedifferent | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 10-30 min je Item | 15-45 min | 60-120 min | 1-4 h |
Participantsdifferent | 1-8 | 1-8 | 2-8 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | PERT Estimate, Expected Value, Risk Notes | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | EstimationUncertaintyForecasting | EstimationUncertaintyRisk | ArchitectureCommunicationStakeholdersCanvas | ArchitectureCommunicationVisualization |