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| Criterion |  Architecture Architecture Decision Record |  Decision Making Wideband Delphi |  Architecture Request for Comments |
|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | 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. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 15-45 min | 1-4 h or multiple rounds | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 1-3 | 4-12 Experten | 3-20 Reviewer |
Formatdifferent | Async | Workshop + async | Async |
Outputdifferent | ADR File, Decision Log, Rationale | Estimate Range, Assumption Log, Expert Consensus Notes | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | EstimationExpertsForecasting | ArchitectureDecisionAsyncGovernance |
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