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Selected:ARID (Active Reviews for Intermediate Designs)Pirate Metrics AARRRA/B TestingCounter Metrics
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Growth Pirate Metrics AARRR |  Growth A/B Testing |  Product Strategy Counter Metrics |
|---|---|---|---|---|
Purposedifferent | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | 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. | 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 | High | Low |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 1-2 h Setup, laufend | 1-4 Wochen | 30-60 min |
Participantsdifferent | Designers, developers as users, and facilitation | 2-8 | 1-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | AARRR funnel, Metric baseline, Experiment backlog | Experiment results, Decision log, Learning summary | Counter Metric List, Guardrail Definitions |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | GrowthMetricsExperiments | ExperimentsGrowthAnalyticsValidation | MetricsMeasurementStrategyExperiments |