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Selected:Accountability Ladder Fault Tree Analysis Fishbone Diagram ATAM (Architecture Tradeoff Analysis Method)

Criterion	Operations Accountability Ladder	Operations Fault Tree Analysis	Operations Fishbone Diagram	Architecture ATAM (Architecture Tradeoff Analysis Method)
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.	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.	When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers.	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	Low	High	Low	High
Timedifferent	20-45 min	2-6 h	30-60 min	Several meetings plus preparation and analysis; total effort depends on scope
Participantsdifferent	1-8	3-8	2-8	Evaluation team, architects, and relevant stakeholders
Formatdifferent	Workshop + async	Workshop + async	Workshop	Workshop + async
Outputdifferent	Ownership Reflection, Action Commitment, Coaching Notes	Fault Tree, Critical Paths, Cause Hypotheses, Control Actions	Fishbone Diagram, Cause Categories, Investigation Backlog	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	ResponsibilityLeadershipTeam	RiskRoot causeSafety	Root causeQualityOperations	ArchitectureQualityRiskTradeoffsStakeholders

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