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| Criterion |  Decision Making Three-Point Estimation |  Operations Kaizen Event |  Operations Gemba Walk |  Agile NoEstimates |
|---|---|---|---|---|
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 there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | When estimating slows a team down more than it helps, it shifts the focus to flow, small slices, and real lead time. It sorts work by value, risk, and delivery ability. The result is captured as Throughput Data, Flow Forecast, and Slicing Rules. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 10-30 min je Item | 0.5-5 Tage | 30-120 min | laufend |
Participantsdifferent | 1-8 | 4-10 | 2-6 | 2-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Observation Notes, Improvement Ideas | Throughput Data, Flow Forecast, Slicing Rules |
Tagsno overlap | EstimationUncertaintyForecasting | LeanContinuous improvementOperations | LeanObservationProcessOperations | EstimationForecastingFlow |