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| Criterion |  Facilitation Dot Estimation |  Architecture C4 Model |  Decision Making PERT Estimation |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | When size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. | 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. | 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. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 5-20 min | 1-4 h | 15-45 min | 60-120 min |
Participantsdifferent | 3-20 | 1-5 | 1-8 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Effort Heatmap, Risk Signals, Discussion Targets | Context Diagram, Container Diagram, Component Diagram | PERT Estimate, Expected Value, Risk Notes | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | EstimationEffortRisk | ArchitectureCommunicationVisualization | EstimationUncertaintyRisk | ArchitectureCommunicationStakeholdersCanvas |