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| Criterion |  Operations 5 Whys |  Operations ALPEN Method |  Operations Fishbone Diagram |
|---|---|---|---|
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 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. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 15-30 min | 10-20 min daily | 30-60 min |
Participantsdifferent | 2-6 | 1 | 2-8 |
Formatdifferent | Workshop | Async | Workshop |
Outputdifferent | Root cause notes, Countermeasures | Daily Plan, Time Estimates, Review Notes | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | Root causeIncidentLeanProblem solving | PlanningTime managementProductivityOperations | Root causeQualityOperations |
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