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| Criterion |  Engineering Fault Isolation |  Operations Fishbone Diagram |  Operations Getting Things Done |  Operations ALPEN Method |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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 many open commitments and ideas in daily life, a reliable external storage system emerges. The method relieves the mind so priority and context don't have to compete in memory. | 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 | Medium | Low |
Timedifferent | 30-180 min | 30-60 min | 1-2 h Setup, laufend | 10-20 min daily |
Participantsdifferent | 1-6 | 2-8 | 1 | 1 |
Formatdifferent | Workshop + async | Workshop | Async | Async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Fishbone Diagram, Cause Categories, Investigation Backlog | Action Lists, Project List, Review Routine | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | TroubleshootingDiagnosisEngineering | Root causeQualityOperations | ProductivityPlanningTasksExecution | PlanningTime managementProductivityOperations |