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| Criterion |  Growth Flywheel |  UX Research Diary Study |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|
Purposedifferent | 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 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 an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 60-120 min | 1-4 Wochen | 1-2 Wochen pro Iteration |
Participantsdifferent | 3-8 | 5-20 | 2-6 |
Formatdifferent | Workshop | Async | Workshop + async |
Outputdifferent | Flywheel Map, Friction Points, Growth Levers, Experiment Backlog | Diary Entries, Longitudinal Patterns, Experience Timeline | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | GrowthRetentionConversion | UX researchTrackingBehavior | ExperimentsValidationDiscoveryAssumptions |
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