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Selected:ARID (Active Reviews for Intermediate Designs)A/B Testing After-Action Review Assumption Mapping

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Growth A/B Testing	Operations After-Action Review	Product Discovery Assumption Mapping
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.	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.	After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement.	When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first.
Complexitydifferent	Medium	High	Low	Medium
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	1-4 Wochen	20-45 min	45-60 min
Participantsdifferent	Designers, developers as users, and facilitation	1-6	3-12	2-8
Formatdifferent	Workshop + async	Async	Workshop + async	Workshop + async
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Experiment results, Decision log, Learning summary	Lessons learned, Action items, Event summary	Assumption map, Test backlog, Risk ranking
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	ExperimentsGrowthAnalyticsValidation	LearningOperationsImprovement	AssumptionsRiskExperimentsValidation

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