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| Criterion |  Operations A3 Problem Solving |  Operations 8D Problem Solving |  Decision Making Decision Rights Mapping |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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 | High | Medium | Low |
Timedifferent | 45-90 min | 1-6 Wochen | 90-180 min | 30-60 min |
Participantsdifferent | 2-5 | 4-10 | 4-12 | 2-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Decision Rights Matrix, Agreement | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | LeanProblem solvingCoachingOperations | QualityProblem solvingRoot cause | DecisionGovernanceAlignmentResponsibility | DecisionRolesGovernanceAlignment |