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| Criterion |  Operations Standard Work Analysis |  Decision Making Three-Point Estimation |  Operations Gemba Walk |
|---|---|---|---|
Purposedifferent | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | 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 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-3 h | 10-30 min je Item | 30-120 min |
Participantsdifferent | 2-6 | 1-8 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Three-Point Estimate, Risk Range, Assumption Notes | Observation Notes, Improvement Ideas |
Tagsno overlap | LeanProcessQuality | EstimationUncertaintyForecasting | LeanObservationProcessOperations |
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