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| Criterion |  UX Research Diary Study |  Product Discovery Smoke Test |  Product Strategy Counter Metrics |  UX Research HEART Framework |
|---|---|---|---|---|
Purposedifferent | When experiences build up over days or weeks and a single session cannot capture them, Diary Study records the course of everyday life. Recurring triggers, moods, and habits become visible this way, beyond the sharpness of memory. | 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 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. | 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. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-4 Wochen | 1-5 Tage | 30-60 min | 120 min initial, dann laufend |
Participantsdifferent | 5-20 | Nutzertraffic | 2-6 | 3-6 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Interest Metrics, Conversion Signal, Learning Note | Counter Metric List, Guardrail Definitions | HEART-GSM Table, Dashboard |
Tagsno overlap | UX researchTrackingBehavior | ValidationExperimentsDemandGrowth | MetricsMeasurementStrategyExperiments | MetricsUX researchMeasurementSatisfaction |