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| Criterion |  Decision Making Wideband Delphi |  Operations Gemba Walk |  Agile NoEstimates |
|---|---|---|---|
Purposedifferent | 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 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 | High | Low | Medium |
Timedifferent | 1-4 h or multiple rounds | 30-120 min | laufend |
Participantsdifferent | 4-12 Experten | 2-6 | 2-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Estimate Range, Assumption Log, Expert Consensus Notes | Observation Notes, Improvement Ideas | Throughput Data, Flow Forecast, Slicing Rules |
Tagsno overlap | EstimationExpertsForecasting | LeanObservationProcessOperations | EstimationForecastingFlow |
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