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Selected:ARID (Active Reviews for Intermediate Designs)Fake Door Test Assumption Mapping Assumption Surfacing

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Product Discovery Fake Door Test	Product Discovery Assumption Mapping	Decision Making Assumption Surfacing
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 demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small.	When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first.	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	Medium	Low
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	1-5 Tage	45-60 min	45-90 min
Participantsdifferent	Designers, developers as users, and facilitation	Nutzertraffic	2-8	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	Click Data, Interest Signal, Learning Decision	Assumption map, Test backlog, Risk ranking	Assumption List, Critical Assumptions, Learning Plan
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	ValidationExperimentsDemandDiscovery	AssumptionsRiskExperimentsValidation	AssumptionsRiskDecisionDiscovery

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