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Selected:ARID (Active Reviews for Intermediate Designs)Assumption Mapping Counter Metrics Goal Question Metric

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Product Discovery Assumption Mapping	Product Strategy Counter Metrics	Engineering Goal Question Metric
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 headline metric could mask side effects, it adds guardrail signals against unwanted outcomes. It connects customer value, product logic, and decision priorities. The result is captured as a counter-metric list and guardrail definitions.	Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs.
Complexitydifferent	Medium	Medium	Low	Medium
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	45-60 min	30-60 min	90-180 min
Participantsdifferent	Designers, developers as users, and facilitation	2-8	2-6	3-6
Formatdifferent	Workshop + async	Workshop + async	Workshop + async	Workshop
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Assumption map, Test backlog, Risk ranking	Counter Metric List, Guardrail Definitions	GQM Table, Metric Profiles
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	AssumptionsRiskExperimentsValidation	MetricsMeasurementStrategyExperiments	MetricsMeasurementEngineeringAlignment

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