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| Criterion |  Operations Bottleneck Analysis |  Operations Gemba Walk |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
Purposedifferent | For a flow that backs up at one point, the method looks for the capacity limit with the greatest leverage. It explains why extra effort elsewhere barely improves throughput. | 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. |
Complexitydifferent | Medium | Low | High |
Timedifferent | 1-3 h | 30-120 min | 2-6 h |
Participantsdifferent | 3-8 | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Bottleneck Map, Flow Metrics, Improvement Options, Follow-up Measures | Observation Notes, Improvement Ideas | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | FlowMeasurementConstraints | LeanObservationProcessOperations | RiskQualityOperationsRoot cause |
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