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| Criterion |  Operations DMAIC |  Decision Making PERT Estimation |  Decision Making Wideband Delphi |  Decision Making Delphi Method |
|---|---|---|---|---|
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. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | 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. |
Complexitydifferent | High | Medium | High | High |
Timedifferent | 2-12 Wochen | 15-45 min | 1-4 h or multiple rounds | 1-4 Wochen |
Participantsdifferent | 3-10 | 1-8 | 4-12 Experten | 6-30 Experten |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | PERT Estimate, Expected Value, Risk Notes | Estimate Range, Assumption Log, Expert Consensus Notes | Expert Forecast, Consensus Range, Assumption Notes |
Tagsno overlap | Continuous improvementQualityProcess improvement | EstimationUncertaintyRisk | EstimationExpertsForecasting | ForecastingExpertsDecisionStrategy |