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Selected:Accountability Ladder ATAM (Architecture Tradeoff Analysis Method)A/B Testing Assumption Mapping

Criterion	Operations Accountability Ladder	Architecture ATAM (Architecture Tradeoff Analysis Method)	Growth A/B Testing	Product Discovery Assumption Mapping
Purposedifferent	With defensive reactions to problems, the method shifts the view from justification to ownership. It makes visible which reaction stage a person or team is currently stuck on.	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 two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects.	When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first.
Complexitydifferent	Low	High	High	Medium
Timedifferent	20-45 min	Several meetings plus preparation and analysis; total effort depends on scope	1-4 Wochen	45-60 min
Participantsdifferent	1-8	Evaluation team, architects, and relevant stakeholders	1-6	2-8
Formatdifferent	Workshop + async	Workshop + async	Async	Workshop + async
Outputdifferent	Ownership Reflection, Action Commitment, Coaching Notes	Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations	Experiment results, Decision log, Learning summary	Assumption map, Test backlog, Risk ranking
Tagsno overlap	ResponsibilityLeadershipTeam	ArchitectureQualityRiskTradeoffsStakeholders	ExperimentsGrowthAnalyticsValidation	AssumptionsRiskExperimentsValidation

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