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| Criterion |  Decision Making Delphi Method |  Engineering Fault Isolation |  Decision Making DACI |
|---|---|---|---|
Purposedifferent | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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. |
Complexitydifferent | High | Medium | Low |
Timedifferent | 1-4 Wochen | 30-180 min | 30-60 min |
Participantsdifferent | 6-30 Experten | 1-6 | 2-10 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | ForecastingExpertsDecisionStrategy | TroubleshootingDiagnosisEngineering | DecisionRolesGovernanceAlignment |
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