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| Criterion |  Engineering Fault Isolation |  Decision Making RAPID |  Decision Making Assumption Surfacing |  Decision Making DACI |
|---|---|---|---|---|
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 complex management decisions, clarity is often missing about who recommends, who agrees, and who makes the decision. RAPID creates this assignment and stabilizes decisions across several levels. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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 | Medium | Medium | Low | Low |
Timedifferent | 30-180 min | 45-90 min | 45-90 min | 30-60 min |
Participantsdifferent | 1-6 | 3-12 | 2-8 | 2-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | RAPID Role Map, Recommendation, Decision Log | Assumption List, Critical Assumptions, Learning Plan | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | TroubleshootingDiagnosisEngineering | DecisionRolesGovernance | AssumptionsRiskDecisionDiscovery | DecisionRolesGovernanceAlignment |