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Selected:Failure Scenario Analysis ATAM (Architecture Tradeoff Analysis Method)Smoke Test Fake Door Test

Criterion	Engineering Failure Scenario Analysis	Architecture ATAM (Architecture Tradeoff Analysis Method)	Product Discovery Smoke Test	Product Discovery Fake Door Test
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.	When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all.	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	1-3 h	Several meetings plus preparation and analysis; total effort depends on scope	1-5 Tage	1-5 Tage
Participantsdifferent	3-8	Evaluation team, architects, and relevant stakeholders	Nutzertraffic	Nutzertraffic
Formatdifferent	Workshop	Workshop + async	Async	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	Interest Metrics, Conversion Signal, Learning Note	Click Data, Interest Signal, Learning Decision
Tagsno overlap	FailureResilienceRisk	ArchitectureQualityRiskTradeoffsStakeholders	ValidationExperimentsDemandGrowth	ValidationExperimentsDemandDiscovery

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