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| Criterion |  Agile Ideal Days |  Architecture C4 Model |
|---|---|---|
Purposedifferent | 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. | 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. |
Complexitysame | Low | Low |
Timedifferent | 15-60 min | 1-4 h |
Participantsdifferent | 2-9 | 1-5 |
Formatsame | Workshop + async | Workshop + async |
Outputdifferent | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | EstimationEffortAgile | ArchitectureCommunicationVisualization |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
