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| Criterion |  Agile NoEstimates |  Architecture Request for Comments |  Architecture C4 Model |
|---|---|---|---|
Purposedifferent | When estimating slows a team down more than it helps, it shifts the focus to flow, small slices, and real lead time. It sorts work by value, risk, and delivery ability. The result is captured as Throughput Data, Flow Forecast, and Slicing Rules. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. | 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 | Low |
Timedifferent | laufend | 1-3 Wochen vom Draft bis zur Entscheidung | 1-4 h |
Participantsdifferent | 2-12 | 3-20 Reviewer | 1-5 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Throughput Data, Flow Forecast, Slicing Rules | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | EstimationForecastingFlow | ArchitectureDecisionAsyncGovernance | ArchitectureCommunicationVisualization |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
