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Selected:ARID (Active Reviews for Intermediate Designs)Problem Interview Test Card Hypothesis Prioritization Canvas

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Product Discovery Problem Interview	Product Discovery Test Card	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.	When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution.	The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success.	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	Medium	Low	Medium
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	30-60 min je Interview	20-35 min	60-90 min
Participantsdifferent	Designers, developers as users, and facilitation	5-12 Interviews	1-5	3-8
Formatdifferent	Workshop + async	Workshop + async	Workshop + async	Workshop
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Problem Evidence, Risk Notes, Customer Segments	Test Card with a pre-set threshold	Prioritization Canvas, Hypothesis Backlog
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	DiscoveryInterviewsValidation	ExperimentsValidationDiscoveryHypothesis	ExperimentsPrioritizationDiscoveryHypothesis

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