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| Criterion | ![]() Growth Flywheel | ![]() UX Research Diary Study | ![]() Product Discovery Riskiest Assumption Test | ![]() Product Discovery Experiment Canvas |
|---|---|---|---|---|
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. | When experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 60-120 min | 1-4 Wochen | 1-2 Wochen pro Iteration | 30-60 min |
Participantsdifferent | 3-8 | 5-20 | 2-6 | 1-5 |
Formatdifferent | Workshop | Async | 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 | Completed Experiment Canvas, Success Metric |
Tagsno overlap | GrowthRetentionConversion | UX researchTrackingBehavior | ExperimentsValidationDiscoveryAssumptions | ExperimentsValidationDiscoveryHypothesis |



