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| Criterion |  Operations 5 Whys |  Operations ABC Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
Purposedifferent | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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. |
Complexitydifferent | Low | Low | High |
Timedifferent | 15-30 min | 30-60 min | 2-6 h |
Participantsdifferent | 2-6 | 1-5 | 3-10 |
Formatdifferent | Workshop | Async | Workshop |
Outputdifferent | Root cause notes, Countermeasures | ABC Classification, Focus Rules, Control List | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | Root causeIncidentLeanProblem solving | PrioritizationOperationsPortfolio | RiskQualityOperationsRoot cause |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
