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| Criterion |  Architecture Request for Comments |  Operations A3 Problem Solving |  Operations RACI Matrix |  Operations Kepner-Tregoe |
|---|---|---|---|---|
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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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 disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Medium | Medium | Low | High |
Timedifferent | 1-3 Wochen vom Draft bis zur Entscheidung | 45-90 min | 45-90 min | 2-8 h |
Participantsdifferent | 3-20 Reviewer | 2-5 | 2-8 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | A3 Report, Action Plan, Root Cause Analysis | RACI Matrix, Responsibility Map, Decision Notes | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | ArchitectureDecisionAsyncGovernance | LeanProblem solvingCoachingOperations | RolesResponsibilityGovernanceOperations | Problem solvingRoot causeDecisionOperations |