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| Criterion |  Engineering Fault Isolation |  UX Research HEART Framework |  Engineering Hypothesis-Driven Troubleshooting |  Product Strategy KPI Tree |
|---|---|---|---|---|
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. | Helps clarify observations, needs, and patterns in concrete terms. It groups observations into patterns, questions, and decisions. The result is captured as a HEART-GSM table and dashboard. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-180 min | 120 min initial, dann laufend | 30-240 min | 90-180 min initial, dann laufend |
Participantsdifferent | 1-6 | 3-6 | 1-6 | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | HEART-GSM Table, Dashboard | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | KPI Tree, Owner List |
Tagsno overlap | TroubleshootingDiagnosisEngineering | MetricsUX researchMeasurementSatisfaction | TroubleshootingProblem solvingDiagnosis | MetricsStrategyAlignmentMeasurement |