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| Criterion |  Operations DMAIC |  Decision Making Delphi Method |  Decision Making DACI |  Product Strategy DIBB |
|---|---|---|---|---|
Purposedifferent | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | 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. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. |
Complexitydifferent | High | High | Low | Low |
Timedifferent | 2-12 Wochen | 1-4 Wochen | 30-60 min | 1-2 h |
Participantsdifferent | 3-10 | 6-30 Experten | 2-10 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Expert Forecast, Consensus Range, Assumption Notes | DACI Matrix, Decision Owner, Decision Log | DIBB document, Belief list, Bet list, Learning report |
Tagsno overlap | Continuous improvementQualityProcess improvement | ForecastingExpertsDecisionStrategy | DecisionRolesGovernanceAlignment | StrategyDecisionAssumptionsHypothesis |