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| Criterion |  Engineering Fault Isolation |  Decision Making Argument Mapping |  Decision Making Decision Rights Mapping |  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. | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. | 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. | 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 | Medium | Low |
Timedifferent | 30-180 min | 1-3 h | 90-180 min | 30-60 min |
Participantsdifferent | 1-6 | 1-8 | 4-12 | 2-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Argument Map, Evidence Gaps, Decision Rationale | Decision Rights Matrix, Agreement | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | TroubleshootingDiagnosisEngineering | SensemakingDecisionRationale | DecisionGovernanceAlignmentResponsibility | DecisionRolesGovernanceAlignment |