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| Criterion |  Decision Making Three-Point Estimation |  Operations Kaizen Event |  Decision Making Delphi Method |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 10-30 min je Item | 0.5-5 Tage | 1-4 Wochen | 45-90 min |
Participantsdifferent | 1-8 | 4-10 | 6-30 Experten | 2-5 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Expert Forecast, Consensus Range, Assumption Notes | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | EstimationUncertaintyForecasting | LeanContinuous improvementOperations | ForecastingExpertsDecisionStrategy | LeanProblem solvingCoachingOperations |