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| Criterion |  Operations Gemba Walk |  Operations ABC Analysis |  Operations Failure Mode and Effects Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
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. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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 a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Low | Low | High | Low |
Timedifferent | 30-120 min | 30-60 min | 2-6 h | 30-60 min |
Participantsdifferent | 2-6 | 1-5 | 3-10 | 2-8 |
Formatdifferent | Workshop | Async | Workshop | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | ABC Classification, Focus Rules, Control List | FMEA Table, Risk Priority, Mitigation Actions | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tags1 shared | LeanObservationProcessOperations | PrioritizationOperationsPortfolio | RiskQualityOperationsRoot cause | Root causeQualityOperations |