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Selected:ARID (Active Reviews for Intermediate Designs)Six Thinking Hats MVP Test Matrix Learning Card

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Facilitation Six Thinking Hats	Product Discovery MVP Test Matrix	Product Discovery Learning 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.	When a topic gets stuck too quickly in the same thinking mode, Six Thinking Hats deliberately separates the perspectives. This means facts, risks, creativity, and emotional signals get worked through one after another instead of mixed together.	When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan.	The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible.
Complexitydifferent	Medium	Medium	Medium	Low
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	45-90 min	45-75 min	25-40 min
Participantsdifferent	Designers, developers as users, and facilitation	4-12	2-8	1-5
Formatdifferent	Workshop + async	Workshop	Workshop	Workshop + async
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Perspective Notes, Decision Inputs, Action Items	Test Matrix, Test Plan	Learning Card with evidence and next action
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	FacilitationOptionsDecision	ExperimentsValidationDiscoveryOptions	ExperimentsValidationDiscoveryLearning

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