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| Criterion |  Growth A/B Testing |  Product Strategy Counter Metrics |  Engineering Goal Question Metric |  Growth Pirate Metrics AARRR |
|---|---|---|---|---|
Purposedifferent | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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 technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. | 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. |
Complexitydifferent | High | Low | Medium | Medium |
Timedifferent | 1-4 Wochen | 30-60 min | 90-180 min | 1-2 h Setup, laufend |
Participantsdifferent | 1-6 | 2-6 | 3-6 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Experiment results, Decision log, Learning summary | Counter Metric List, Guardrail Definitions | GQM Table, Metric Profiles | AARRR funnel, Metric baseline, Experiment backlog |
Tagsno overlap | ExperimentsGrowthAnalyticsValidation | MetricsMeasurementStrategyExperiments | MetricsMeasurementEngineeringAlignment | GrowthMetricsExperiments |