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| Criterion |  Agile NoEstimates |  Decision Making Three-Point Estimation |  Engineering Kanban |  Decision Making PERT Estimation |
|---|---|---|---|---|
Purposedifferent | 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. | 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 work sits in too many parallel streams, throughput suffers and no one sees the bottlenecks. Kanban makes the flow of work visible and limits overload so a system becomes calmer and more predictable. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | laufend | 10-30 min je Item | Ongoing | 15-45 min |
Participantsdifferent | 2-12 | 1-8 | 2-12 | 1-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Throughput Data, Flow Forecast, Slicing Rules | Three-Point Estimate, Risk Range, Assumption Notes | Kanban board, WIP policies, Flow metrics | PERT Estimate, Expected Value, Risk Notes |
Tagsno overlap | EstimationForecastingFlow | EstimationUncertaintyForecasting | FlowVisual managementDelivery | EstimationUncertaintyRisk |