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| Criterion |  Architecture Request for Comments |  Delivery Cost of Delay |  Decision Making Assumption Surfacing |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 1-3 Wochen vom Draft bis zur Entscheidung | 90-180 min | 45-90 min | 15-45 min |
Participantsdifferent | 3-20 Reviewer | 3-8 | 2-8 | 1-3 |
Formatdifferent | Async | Workshop | Workshop + async | Async |
Outputdifferent | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | CoD Table, Prioritization Sequence | Assumption List, Critical Assumptions, Learning Plan | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureDecisionAsyncGovernance | PrioritizationDeliveryEconomicsDecision | AssumptionsRiskDecisionDiscovery | ArchitectureRationaleDocumentationGovernance |