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| Criterion |  Engineering Fault Isolation |  Architecture Request for Comments |  Decision Making Decision Rights Mapping |  Engineering Goal Question Metric |
|---|---|---|---|---|
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. | 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. | In organizations with many stakeholders, it often blurs who actually decides and who is merely consulted. It separates options, evaluation criteria, and open risks. The result is captured as a Decision Rights matrix and an agreement. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-180 min | 1-3 Wochen vom Draft bis zur Entscheidung | 90-180 min | 90-180 min |
Participantsdifferent | 1-6 | 3-20 Reviewer | 4-12 | 3-6 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Decision Rights Matrix, Agreement | GQM Table, Metric Profiles |
Tagsno overlap | TroubleshootingDiagnosisEngineering | ArchitectureDecisionAsyncGovernance | DecisionGovernanceAlignmentResponsibility | MetricsMeasurementEngineeringAlignment |