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Selected:Solution Interview ARID (Active Reviews for Intermediate Designs)Assumption Surfacing Assumption Mapping

Criterion	Product Discovery Solution Interview	Architecture ARID (Active Reviews for Intermediate Designs)	Decision Making Assumption Surfacing	Product Discovery Assumption Mapping
Purposedifferent	When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation.	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.	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.	When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first.
Complexitydifferent	Medium	Medium	Low	Medium
Timedifferent	30-60 min je Interview	2–4 h review as a planning range; preparation and evaluation additional	45-90 min	45-60 min
Participantsdifferent	5-10 Interviews	Designers, developers as users, and facilitation	2-8	2-8
Formatsame	Workshop + async	Workshop + async	Workshop + async	Workshop + async
Outputdifferent	Solution Feedback, Objection List, Validation Notes	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Assumption List, Critical Assumptions, Learning Plan	Assumption map, Test backlog, Risk ranking
Tagsno overlap	ValidationInterviewsPrototype	ArchitectureEngineeringFeedbackValidationTasks	AssumptionsRiskDecisionDiscovery	AssumptionsRiskExperimentsValidation

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