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Selected:User Story Mapping Fault Tree Analysis 8D Problem Solving ATAM (Architecture Tradeoff Analysis Method)

Criterion	Product Discovery User Story Mapping	Operations Fault Tree Analysis	Operations 8D Problem Solving	Architecture ATAM (Architecture Tradeoff Analysis Method)
Purposedifferent	When user goals and delivery scope could drift apart, it orders the journey from goal to slice. It makes visible where an MVP can genuinely be cut.	For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage.	For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly.	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.
Complexitydifferent	Medium	High	High	High
Timedifferent	2-4 h	2-6 h	1-6 Wochen	Several meetings plus preparation and analysis; total effort depends on scope
Participantsdifferent	4-10	3-8	4-10	Evaluation team, architects, and relevant stakeholders
Formatdifferent	Workshop	Workshop + async	Workshop + async	Workshop + async
Outputdifferent	Story Map, Release Slices, Backlog Candidates	Fault Tree, Critical Paths, Cause Hypotheses, Control Actions	8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan	Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations
Tagsno overlap	BacklogJourneyPlanningMVP	RiskRoot causeSafety	QualityProblem solvingRoot cause	ArchitectureQualityRiskTradeoffsStakeholders

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