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| Criterion |  Engineering Fault Isolation |  Decision Making DACI |  Architecture Request for Comments |  Architecture Architecture Inception Canvas |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | 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. | The Architecture Inception Canvas bundles the first architecture questions into a compact decision picture. It fits when an initiative is still in motion but still needs clear guardrails. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 30-180 min | 30-60 min | 1-3 Wochen vom Draft bis zur Entscheidung | 1-2 h |
Participantsdifferent | 1-6 | 2-10 | 3-20 Reviewer | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | DACI Matrix, Decision Owner, Decision Log | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Inception Canvas, Risks, Goal List, Open Questions |
Tagsno overlap | TroubleshootingDiagnosisEngineering | DecisionRolesGovernanceAlignment | ArchitectureDecisionAsyncGovernance | AlignmentArchitectureCanvas |