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Selected:ARID (Active Reviews for Intermediate Designs)Software Architecture Canvas Experiment Canvas Test Card

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Architecture Software Architecture Canvas	Product Discovery Experiment Canvas	Product Discovery Test Card
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.	The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly.	When experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric.	The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success.
Complexitydifferent	Medium	Low	Low	Low
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	1-2 h	30-60 min	20-35 min
Participantsdifferent	Designers, developers as users, and facilitation	3-10	1-5	1-5
Formatdifferent	Workshop + async	Workshop	Workshop + async	Workshop + async
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Architecture Canvas, Goals, Constraints, Quality Attributes	Completed Experiment Canvas, Success Metric	Test Card with a pre-set threshold
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	CanvasArchitectureAlignmentWorkshop	ExperimentsValidationDiscoveryHypothesis	ExperimentsValidationDiscoveryHypothesis

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