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| Criterion |  Architecture C4 Model |  Agile Ideal Days |
|---|---|---|
Purposedifferent | 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 effort needs to be thought of as real working time, it offers a simple common denominator for comparison. It sorts work by value, risk, and delivery ability. The result is captured as Ideal Day Estimates, Assumption Notes, and Capacity Caveats. |
Complexitysame | Low | Low |
Timedifferent | 1-4 h | 15-60 min |
Participantsdifferent | 1-5 | 2-9 |
Formatsame | Workshop + async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Ideal Day Estimates, Assumption Notes, Capacity Caveats |
Tagsno overlap | ArchitectureCommunicationVisualization | EstimationEffortAgile |
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