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| Criterion |  Operations Gemba Walk |  Operations Failure Mode and Effects Analysis |  Delivery Value Stream Mapping |
|---|---|---|---|
Purposedifferent | 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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 30-120 min | 2-6 h | 1-3 h |
Participantsdifferent | 2-6 | 3-10 | 4-10 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | FMEA Table, Risk Priority, Mitigation Actions | Current-state map, Future-state map, Bottleneck list |
Tagsno overlap | LeanObservationProcessOperations | RiskQualityOperationsRoot cause | LeanFlowWasteDelivery |
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