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Selected:Opportunity Solution Tree ARID (Active Reviews for Intermediate Designs)MVP Test Matrix Learning Card

Criterion	Product Discovery Opportunity Solution Tree	Architecture ARID (Active Reviews for Intermediate Designs)	Product Discovery MVP Test Matrix	Product Discovery Learning Card
Purposedifferent	When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure.	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 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	1-2 h Setup, laufend	2–4 h review as a planning range; preparation and evaluation additional	45-75 min	25-40 min
Participantsdifferent	2-6	Designers, developers as users, and facilitation	2-8	1-5
Formatdifferent	Workshop + async	Workshop + async	Workshop	Workshop + async
Outputdifferent	Opportunity Solution Tree, Experiment Backlog, Learning Log	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Test Matrix, Test Plan	Learning Card with evidence and next action
Tagsno overlap	DiscoveryOutcomesExperimentsOpportunity	ArchitectureEngineeringFeedbackValidationTasks	ExperimentsValidationDiscoveryOptions	ExperimentsValidationDiscoveryLearning

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