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Selected:Quality Attribute Workshop ATAM (Architecture Tradeoff Analysis Method)Test Card Fake Door Test

Criterion	Architecture Quality Attribute Workshop	Architecture ATAM (Architecture Tradeoff Analysis Method)	Product Discovery Test Card	Product Discovery Fake Door Test
Purposedifferent	A Quality Attribute Workshop translates quality requirements into concrete scenarios and architecture impulses. The method brings product, engineering, and operations to the same view of desired properties.	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 demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small.
Complexitydifferent	Medium	High	Low	Medium
Timedifferent	2-4 h	Several meetings plus preparation and analysis; total effort depends on scope	20-35 min	1-5 Tage
Participantsdifferent	5-15	Evaluation team, architects, and relevant stakeholders	1-5	Nutzertraffic
Formatdifferent	Workshop	Workshop + async	Workshop + async	Async
Outputdifferent	Quality Scenarios, Priority List, Architecture Concerns	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	Click Data, Interest Signal, Learning Decision
Tagsno overlap	RequirementsArchitectureWorkshop	ArchitectureQualityRiskTradeoffsStakeholders	ExperimentsValidationDiscoveryHypothesis	ValidationExperimentsDemandDiscovery

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