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Selected:A/B TestingPirate Metrics AARRRATAM (Architecture Tradeoff Analysis Method)Assumption Mapping
| Criterion |  Growth A/B Testing |  Growth Pirate Metrics AARRR |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | 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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | 1-4 Wochen | 1-2 h Setup, laufend | Several meetings plus preparation and analysis; total effort depends on scope | 45-60 min |
Participantsdifferent | 1-6 | 2-8 | Evaluation team, architects, and relevant stakeholders | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Experiment results, Decision log, Learning summary | AARRR funnel, Metric baseline, Experiment backlog | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ExperimentsGrowthAnalyticsValidation | GrowthMetricsExperiments | ArchitectureQualityRiskTradeoffsStakeholders | AssumptionsRiskExperimentsValidation |