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| Criterion |  Operations Fishbone Diagram |  Operations Failure Mode and Effects Analysis |  Operations Eat the Frog |  Operations Ivy Lee Method |
|---|---|---|---|---|
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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 30-60 min | 2-6 h | 15-90 min daily | 5-10 min daily |
Participantsdifferent | 2-8 | 3-10 | 1 | 1 |
Formatdifferent | Workshop | Workshop | Async | Async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | FMEA Table, Risk Priority, Mitigation Actions | Priority Task, Completion Note, Daily Focus | Daily Priority List, Completion Notes |
Tagsno overlap | Root causeQualityOperations | RiskQualityOperationsRoot cause | PrioritizationProductivityFocusExecution | PrioritizationProductivityExecution |