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

Criterion	Product Discovery Assumption Mapping	Architecture ARID (Active Reviews for Intermediate Designs)	Product Strategy Counter Metrics	Engineering Goal Question Metric
Purposedifferent	When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first.	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 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	45-60 min	2–4 h review as a planning range; preparation and evaluation additional	30-60 min	90-180 min
Participantsdifferent	2-8	Designers, developers as users, and facilitation	2-6	3-6
Formatdifferent	Workshop + async	Workshop + async	Workshop + async	Workshop
Outputdifferent	Assumption map, Test backlog, Risk ranking	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Counter Metric List, Guardrail Definitions	GQM Table, Metric Profiles
Tagsno overlap	AssumptionsRiskExperimentsValidation	ArchitectureEngineeringFeedbackValidationTasks	MetricsMeasurementStrategyExperiments	MetricsMeasurementEngineeringAlignment

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