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| Criterion |  Operations Fishbone Diagram |  Operations Failure Mode and Effects Analysis |  Operations Eat the Frog |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | The method protects energy and attention for the task that creates the largest progress and is often postponed. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Low | High | Low | High |
Timedifferent | 30-60 min | 2-6 h | 15-90 min daily | 1-6 Wochen |
Participantsdifferent | 2-8 | 3-10 | 1 | 4-10 |
Formatdifferent | Workshop | Workshop | Async | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | FMEA Table, Risk Priority, Mitigation Actions | Priority Task, Completion Note, Daily Focus | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Root causeQualityOperations | RiskQualityOperationsRoot cause | PrioritizationProductivityFocusExecution | QualityProblem solvingRoot cause |