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| Criterion |  Engineering Fault Isolation |  Operations ABC Analysis |  Product Discovery Kano Model |  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. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | When features need to be distinguished by their effect on satisfaction, it makes expectations and surprises comparable. It separates basic needs, performance contribution, and delight. | 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 Tage | 10-20 min daily |
Participantsdifferent | 1-6 | 1-5 | 10-50 | 1 |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | ABC Classification, Focus Rules, Control List | Kano Matrix, Feature Classes, Priority Themes | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | TroubleshootingDiagnosisEngineering | PrioritizationOperationsPortfolio | SatisfactionPrioritizationCustomer | PlanningTime managementProductivityOperations |