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| Criterion |  Architecture Architecture Decision Record |  Growth Pirate Metrics AARRR |  Growth Growth Experiment |
|---|---|---|---|
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 growth ideas surface quickly, the temptation to build immediately instead of learning is high. A Growth Experiment frames an assumption so target group, lever, and measurement are clear before the first deployment. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 15-45 min | 1-2 h Setup, laufend | 1-2 Wochen |
Participantsdifferent | 1-3 | 2-8 | 1-6 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | AARRR funnel, Metric baseline, Experiment backlog | Experiment card, Result summary, Next bet |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | GrowthMetricsExperiments | MarketingGrowthExperimentsLearning |
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