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

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

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