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| Criterion |  Architecture Architecture Decision Record |  Growth Pirate Metrics AARRR |  Growth A/B Testing |
|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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 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. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 15-45 min | 1-2 h Setup, laufend | 1-4 Wochen |
Participantsdifferent | 1-3 | 2-8 | 1-6 |
Formatdifferent | Async | Workshop + async | Async |
Outputdifferent | ADR File, Decision Log, Rationale | AARRR funnel, Metric baseline, Experiment backlog | Experiment results, Decision log, Learning summary |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | GrowthMetricsExperiments | ExperimentsGrowthAnalyticsValidation |
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