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| Criterion |  Operations A3 Problem Solving |  Engineering Fault Isolation |  Product Strategy Counter Metrics |  Product Strategy KPI Tree |
|---|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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 headline metric could mask side effects, it adds guardrail signals against unwanted outcomes. It connects customer value, product logic, and decision priorities. The result is captured as a counter-metric list and guardrail definitions. | When metrics across the organization drift apart, it arranges drivers and effects under one shared logic. It connects customer value, product logic, and decision priorities. The result is captured as a KPI tree and owner list. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 45-90 min | 30-180 min | 30-60 min | 90-180 min initial, dann laufend |
Participantsdifferent | 2-5 | 1-6 | 2-6 | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Counter Metric List, Guardrail Definitions | KPI Tree, Owner List |
Tagsno overlap | LeanProblem solvingCoachingOperations | TroubleshootingDiagnosisEngineering | MetricsMeasurementStrategyExperiments | MetricsStrategyAlignmentMeasurement |