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Selected:GAP Analysis ARID (Active Reviews for Intermediate Designs)Assumption Mapping Assumption Surfacing

Criterion	Business Strategy GAP Analysis	Architecture ARID (Active Reviews for Intermediate Designs)	Product Discovery Assumption Mapping	Decision Making Assumption Surfacing
Purposedifferent	GAP Analysis compares the current state with a target picture and makes the distance manageable. It becomes useful when, ahead of new initiatives, it must become clear which capabilities, processes, or resources are missing.	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.	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	Medium	Low
Timedifferent	1-3 h	2–4 h review as a planning range; preparation and evaluation additional	45-60 min	45-90 min
Participantsdifferent	2-8	Designers, developers as users, and facilitation	2-8	2-8
Formatsame	Workshop + async	Workshop + async	Workshop + async	Workshop + async
Outputdifferent	Gap Matrix, Action Plan, Risk Notes	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Assumption map, Test backlog, Risk ranking	Assumption List, Critical Assumptions, Learning Plan
Tagsno overlap	StrategyAnalysisPlanning	ArchitectureEngineeringFeedbackValidationTasks	AssumptionsRiskExperimentsValidation	AssumptionsRiskDecisionDiscovery

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