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Selected:ARID (Active Reviews for Intermediate Designs)Hypothesis Prioritization Canvas Fake Door Test Test Card

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Product Discovery Hypothesis Prioritization Canvas	Product Discovery Fake Door Test	Product Discovery Test Card
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 many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog.	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.	The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success.
Complexitydifferent	Medium	Medium	Medium	Low
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	60-90 min	1-5 Tage	20-35 min
Participantsdifferent	Designers, developers as users, and facilitation	3-8	Nutzertraffic	1-5
Formatdifferent	Workshop + async	Workshop	Async	Workshop + async
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Prioritization Canvas, Hypothesis Backlog	Click Data, Interest Signal, Learning Decision	Test Card with a pre-set threshold
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	ExperimentsPrioritizationDiscoveryHypothesis	ValidationExperimentsDemandDiscovery	ExperimentsValidationDiscoveryHypothesis

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