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Selected:ARID (Active Reviews for Intermediate Designs)Pirate Metrics AARRR Counter Metrics Smoke Test

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Growth Pirate Metrics AARRR	Product Strategy Counter Metrics	Product Discovery Smoke Test
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 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.	When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all.
Complexitydifferent	Medium	Medium	Low	Low
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	1-2 h Setup, laufend	30-60 min	1-5 Tage
Participantsdifferent	Designers, developers as users, and facilitation	2-8	2-6	Nutzertraffic
Formatdifferent	Workshop + async	Workshop + async	Workshop + async	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	Counter Metric List, Guardrail Definitions	Interest Metrics, Conversion Signal, Learning Note
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	GrowthMetricsExperiments	MetricsMeasurementStrategyExperiments	ValidationExperimentsDemandGrowth

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