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Selected:Change Analysis ARID (Active Reviews for Intermediate Designs)Risk Storming Assumption Mapping

Criterion	Operations Change Analysis	Architecture ARID (Active Reviews for Intermediate Designs)	Architecture Risk Storming	Product Discovery Assumption Mapping
Purposedifferent	For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise.	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.	Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog.	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	45-120 min	2–4 h review as a planning range; preparation and evaluation additional	60-90 min	45-60 min
Participantsdifferent	2-6	Designers, developers as users, and facilitation	4-12	2-8
Formatdifferent	Workshop + async	Workshop + async	Workshop	Workshop + async
Outputdifferent	Change Matrix, Cause Hypotheses, Validation Questions, Action List	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Annotated Diagram, Prioritized Risk List, Action Backlog	Assumption map, Test backlog, Risk ranking
Tagsno overlap	ChangeRoot causeTroubleshootingComparison	ArchitectureEngineeringFeedbackValidationTasks	RiskArchitectureWorkshopValidation	AssumptionsRiskExperimentsValidation

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