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

Criterion	Systems Thinking Future Reality Tree	Architecture ARID (Active Reviews for Intermediate Designs)	Product Discovery Assumption Mapping	Systems Thinking Evaporating Cloud
Purposedifferent	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.	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.	The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict.
Complexitydifferent	High	Medium	Medium	Medium
Timedifferent	2-4 h	2–4 h review as a planning range; preparation and evaluation additional	45-60 min	60-120 min
Participantsdifferent	3-8	Designers, developers as users, and facilitation	2-8	2-8
Formatdifferent	Workshop	Workshop + async	Workshop + async	Workshop
Outputdifferent	Future Reality Tree, Negative Branches, Assumption List, Improved Injections	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Assumption map, Test backlog, Risk ranking	Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments
Tagsno overlap	Theory of ConstraintsSystems thinkingChange	ArchitectureEngineeringFeedbackValidationTasks	AssumptionsRiskExperimentsValidation	Theory of ConstraintsAssumptionsSystems thinking

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