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Selected:ARID (Active Reviews for Intermediate Designs)Assumption Mapping Risk Matrix Assumption Surfacing

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Product Discovery Assumption Mapping	Decision Making Risk Matrix	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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first.	When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List.	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	Low	Low
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	45-60 min	30-60 min	45-90 min
Participantsdifferent	Designers, developers as users, and facilitation	2-8	3-10	2-8
Formatsame	Workshop + async	Workshop + async	Workshop + async	Workshop + async
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Assumption map, Test backlog, Risk ranking	Risk Matrix, Top Risk List	Assumption List, Critical Assumptions, Learning Plan
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	AssumptionsRiskExperimentsValidation	RiskDecisionPrioritizationAssessment	AssumptionsRiskDecisionDiscovery

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