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| Criterion |  Operations Root Cause Tree Analysis |  Operations Fishbone Diagram |  Operations ALPEN Method |
|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 1-3 h | 30-60 min | 10-20 min daily |
Participantsdifferent | 2-8 | 2-8 | 1 |
Formatdifferent | Workshop | Workshop | Async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Fishbone Diagram, Cause Categories, Investigation Backlog | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | Root causeTreeIncidentQuality | Root causeQualityOperations | PlanningTime managementProductivityOperations |
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