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| Criterion |  Operations Standard Work Analysis |  Delivery Value Stream Mapping |  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. | When delivery work dissolves into wait times, handoffs, and hidden effort, Value Stream Mapping makes the actual flow visible. The method exposes bottlenecks, idle time, and feedback loops so lead time and improvement levers become tangible. | 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 | Medium | Low |
Timedifferent | 1-3 h | 1-3 h | 10-30 min je Item | 30-120 min |
Participantsdifferent | 2-6 | 4-10 | 1-8 | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Current-state map, Future-state map, Bottleneck list | Three-Point Estimate, Risk Range, Assumption Notes | Observation Notes, Improvement Ideas |
Tagsno overlap | LeanProcessQuality | LeanFlowWasteDelivery | EstimationUncertaintyForecasting | LeanObservationProcessOperations |