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| Criterion |  Operations 8D Problem Solving |  Decision Making Delphi Method |  Decision Making DACI |  Decision Making RAPID |
|---|---|---|---|---|
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. | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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. | 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. |
Complexitydifferent | High | High | Low | Medium |
Timedifferent | 1-6 Wochen | 1-4 Wochen | 30-60 min | 45-90 min |
Participantsdifferent | 4-10 | 6-30 Experten | 2-10 | 3-12 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Expert Forecast, Consensus Range, Assumption Notes | DACI Matrix, Decision Owner, Decision Log | RAPID Role Map, Recommendation, Decision Log |
Tagsno overlap | QualityProblem solvingRoot cause | ForecastingExpertsDecisionStrategy | DecisionRolesGovernanceAlignment | DecisionRolesGovernance |