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| Criterion |  Architecture C4 Model |  Architecture Request for Comments |  Delivery Cost of Delay |
|---|---|---|---|
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. | 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. | Helps clarify scope, order, and delivery flow in concrete terms. It makes work, constraints, and sequence manageable. The result is captured as a Cost of Delay table and prioritization sequence. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 1-4 h | 1-3 Wochen vom Draft bis zur Entscheidung | 90-180 min |
Participantsdifferent | 1-5 | 3-20 Reviewer | 3-8 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | CoD Table, Prioritization Sequence |
Tagsno overlap | ArchitectureCommunicationVisualization | ArchitectureDecisionAsyncGovernance | PrioritizationDeliveryEconomicsDecision |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
