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| Criterion |  Architecture Request for Comments |  Operations RACI Matrix |  Operations 5 Whys |
|---|---|---|---|
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. | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 1-3 Wochen vom Draft bis zur Entscheidung | 45-90 min | 15-30 min |
Participantsdifferent | 3-20 Reviewer | 2-8 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | RACI Matrix, Responsibility Map, Decision Notes | Root cause notes, Countermeasures |
Tagsno overlap | ArchitectureDecisionAsyncGovernance | RolesResponsibilityGovernanceOperations | Root causeIncidentLeanProblem solving |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
