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Selected:Failure Scenario Analysis ATAM (Architecture Tradeoff Analysis Method)Test Card Assumption Mapping

Criterion	Engineering Failure Scenario Analysis	Architecture ATAM (Architecture Tradeoff Analysis Method)	Product Discovery Test Card	Product Discovery Assumption Mapping
Purposedifferent	In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage.	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	1-3 h	Several meetings plus preparation and analysis; total effort depends on scope	20-35 min	45-60 min
Participantsdifferent	3-8	Evaluation team, architects, and relevant stakeholders	1-5	2-8
Formatdifferent	Workshop	Workshop + async	Workshop + async	Workshop + async
Outputdifferent	Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions	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	FailureResilienceRisk	ArchitectureQualityRiskTradeoffsStakeholders	ExperimentsValidationDiscoveryHypothesis	AssumptionsRiskExperimentsValidation

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