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| Criterion |  Operations 8D Problem Solving |  Decision Making RAPID |  Decision Making DACI |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | 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 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. | 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. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | High | Medium | Low | High |
Timedifferent | 1-6 Wochen | 45-90 min | 30-60 min | 2-8 h |
Participantsdifferent | 4-10 | 3-12 | 2-10 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | RAPID Role Map, Recommendation, Decision Log | DACI Matrix, Decision Owner, Decision Log | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | QualityProblem solvingRoot cause | DecisionRolesGovernance | DecisionRolesGovernanceAlignment | Problem solvingRoot causeDecisionOperations |