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| Criterion |  Decision Making Decision Rights Mapping |  Operations Root Cause Analysis |  Operations 5 Whys |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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 | 90-180 min | 1-4 h | 15-30 min | 30-60 min |
Participantsdifferent | 4-12 | 3-8 | 2-6 | 2-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Decision Rights Matrix, Agreement | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Root cause notes, Countermeasures | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | DecisionGovernanceAlignmentResponsibility | Root causeProblem solvingQualityIncident | Root causeIncidentLeanProblem solving | DecisionRolesGovernanceAlignment |