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| Criterion |  Operations 5 Whys |  Operations Standard Work Analysis |  Operations Family Tree 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. | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 15-30 min | 1-3 h | 2-4 h |
Participantssame | 2-6 | 2-6 | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Family Tree Diagram, Pattern Notes, Systemic Measures |
Tagsno overlap | Root causeIncidentLeanProblem solving | LeanProcessQuality | Root causePatternsIncidentSystemic |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
