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| Criterion |  UX Research HEART Framework |  Product Discovery Smoke Test |  Growth North Star Metric |
|---|---|---|---|
Purposedifferent | 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 demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | When product teams track many metrics, the view of the actual customer outcome easily gets lost. A North Star Metric bundles growth, usage, and value contribution into one signal that makes the system's direction visible. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 120 min initial, dann laufend | 1-5 Tage | 1-2 h |
Participantsdifferent | 3-6 | Nutzertraffic | 3-8 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | HEART-GSM Table, Dashboard | Interest Metrics, Conversion Signal, Learning Note | North Star metric, Input metric tree, Measurement cadence |
Tagsno overlap | MetricsUX researchMeasurementSatisfaction | ValidationExperimentsDemandGrowth | GrowthMetricsAlignmentRetention |
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