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| Criterion |  UX Research Diary Study |  UX Research HEART Framework |  Growth Flywheel |  Growth North Star Metric |
|---|---|---|---|---|
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. | 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. | Growth often breaks down where a reinforcing mechanism builds up too much friction. A Flywheel shows the cycle of value, repetition, and reinforcement meant to sustain growth. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 1-4 Wochen | 120 min initial, dann laufend | 60-120 min | 1-2 h |
Participantsdifferent | 5-20 | 3-6 | 3-8 | 3-8 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | HEART-GSM Table, Dashboard | Flywheel Map, Friction Points, Growth Levers, Experiment Backlog | North Star metric, Input metric tree, Measurement cadence |
Tagsno overlap | UX researchTrackingBehavior | MetricsUX researchMeasurementSatisfaction | GrowthRetentionConversion | GrowthMetricsAlignmentRetention |