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| Criterion |  Operations Fishbone Diagram |  Facilitation 1-2-4-All |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
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. | When many people in a group too rarely get to speak, 1-2-4-All distributes thinking time more fairly. The format builds participation step by step and makes quiet or still-unformed thoughts usable faster. | 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 | Low | Low | High |
Timedifferent | 30-60 min | 10-20 min | 2-6 h |
Participantsdifferent | 2-8 | 4-100+ | 3-10 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Idea List, Shared Insights, Emergent Themes | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | Root causeQualityOperations | FacilitationInclusionIdeation | RiskQualityOperationsRoot cause |
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