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| Criterion |  Operations Change Analysis |  Architecture C4 Model |  Facilitation 3-Circle Venn Diagram |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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 three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. | 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 | Medium | Low | Low | Medium |
Timedifferent | 45-120 min | 1-4 h | 15-45 min | 60-120 min |
Participantsdifferent | 2-6 | 1-5 | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Context Diagram, Container Diagram, Component Diagram | Venn Diagram, Overlap Notes, Differentiators | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | ArchitectureCommunicationVisualization | ComparisonFacilitationAlignment | ArchitectureCommunicationStakeholdersCanvas |