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| Criterion |  Operations Root Cause Tree Analysis |  Operations 8D Problem Solving |  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. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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 | High | Low |
Timedifferent | 1-3 h | 1-6 Wochen | 10-20 min daily |
Participantsdifferent | 2-8 | 4-10 | 1 |
Formatdifferent | Workshop | Workshop + async | Async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | Root causeTreeIncidentQuality | QualityProblem solvingRoot cause | PlanningTime managementProductivityOperations |
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