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Selected:Opportunity Solution Tree ATAM (Architecture Tradeoff Analysis Method)Test Card Assumption Mapping

Criterion	Product Discovery Opportunity Solution Tree	Architecture ATAM (Architecture Tradeoff Analysis Method)	Product Discovery Test Card	Product Discovery Assumption Mapping
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.	ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation.	The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success.	When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first.
Complexitydifferent	Medium	High	Low	Medium
Timedifferent	1-2 h Setup, laufend	Several meetings plus preparation and analysis; total effort depends on scope	20-35 min	45-60 min
Participantsdifferent	2-6	Evaluation team, architects, and relevant stakeholders	1-5	2-8
Formatsame	Workshop + async	Workshop + async	Workshop + async	Workshop + async
Outputdifferent	Opportunity Solution Tree, Experiment Backlog, Learning Log	Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations	Test Card with a pre-set threshold	Assumption map, Test backlog, Risk ranking
Tagsno overlap	DiscoveryOutcomesExperimentsOpportunity	ArchitectureQualityRiskTradeoffsStakeholders	ExperimentsValidationDiscoveryHypothesis	AssumptionsRiskExperimentsValidation

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