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| Criterion |  Engineering Fault Isolation |  UX Research HEART Framework |  Growth A/B Testing |  Engineering Goal Question Metric |
|---|---|---|---|---|
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 two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 30-180 min | 120 min initial, dann laufend | 1-4 Wochen | 90-180 min |
Participantsdifferent | 1-6 | 3-6 | 1-6 | 3-6 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | HEART-GSM Table, Dashboard | Experiment results, Decision log, Learning summary | GQM Table, Metric Profiles |
Tagsno overlap | TroubleshootingDiagnosisEngineering | MetricsUX researchMeasurementSatisfaction | ExperimentsGrowthAnalyticsValidation | MetricsMeasurementEngineeringAlignment |