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| Criterion |  Operations DMAIC |  Decision Making Three-Point Estimation |  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. | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption 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 |
Timedifferent | 2-12 Wochen | 10-30 min je Item | 1-4 Wochen |
Participantsdifferent | 3-10 | 1-8 | 6-30 Experten |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Three-Point Estimate, Risk Range, Assumption Notes | Expert Forecast, Consensus Range, Assumption Notes |
Tagsno overlap | Continuous improvementQualityProcess improvement | EstimationUncertaintyForecasting | ForecastingExpertsDecisionStrategy |
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