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Selected:Assumption Mapping ARID (Active Reviews for Intermediate Designs)A/B Testing Assumption Surfacing

Criterion	Product Discovery Assumption Mapping	Architecture ARID (Active Reviews for Intermediate Designs)	Growth A/B Testing	Decision Making Assumption Surfacing
Purposedifferent	When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first.	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.	Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it.
Complexitydifferent	Medium	Medium	High	Low
Timedifferent	45-60 min	2–4 h review as a planning range; preparation and evaluation additional	1-4 Wochen	45-90 min
Participantsdifferent	2-8	Designers, developers as users, and facilitation	1-6	2-8
Formatdifferent	Workshop + async	Workshop + async	Async	Workshop + async
Outputdifferent	Assumption map, Test backlog, Risk ranking	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Experiment results, Decision log, Learning summary	Assumption List, Critical Assumptions, Learning Plan
Tagsno overlap	AssumptionsRiskExperimentsValidation	ArchitectureEngineeringFeedbackValidationTasks	ExperimentsGrowthAnalyticsValidation	AssumptionsRiskDecisionDiscovery

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