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Selected:ARID (Active Reviews for Intermediate Designs)Future Reality Tree Evaporating Cloud Assumption Mapping

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Systems Thinking Future Reality Tree	Systems Thinking Evaporating Cloud	Product Discovery Assumption Mapping
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.	A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation.	The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict.	When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first.
Complexitydifferent	Medium	High	Medium	Medium
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	2-4 h	60-120 min	45-60 min
Participantsdifferent	Designers, developers as users, and facilitation	3-8	2-8	2-8
Formatdifferent	Workshop + async	Workshop	Workshop	Workshop + async
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Future Reality Tree, Negative Branches, Assumption List, Improved Injections	Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments	Assumption map, Test backlog, Risk ranking
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	Theory of ConstraintsSystems thinkingChange	Theory of ConstraintsAssumptionsSystems thinking	AssumptionsRiskExperimentsValidation

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