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| Criterion | ![]() UX Research HEART Framework | ![]() Growth Pirate Metrics AARRR | ![]() Product Discovery Riskiest Assumption Test | ![]() Product Strategy Counter Metrics |
|---|---|---|---|---|
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. | For products with complex usage paths, overall growth alone is too coarse to reveal bottlenecks. Pirate Metrics breaks the relationship with the product into consecutive stages and shows where the funnel actually leaks. | 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 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 120 min initial, dann laufend | 1-2 h Setup, laufend | 1-2 Wochen pro Iteration | 30-60 min |
Participantsdifferent | 3-6 | 2-8 | 2-6 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | HEART-GSM Table, Dashboard | AARRR funnel, Metric baseline, Experiment backlog | Prioritized Assumption List, Test Plan, Results Report | Counter Metric List, Guardrail Definitions |
Tagsno overlap | MetricsUX researchMeasurementSatisfaction | GrowthMetricsExperiments | ExperimentsValidationDiscoveryAssumptions | MetricsMeasurementStrategyExperiments |



