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Selected:Fishbone Diagram Feynman Technique Fault Tree Analysis ATAM (Architecture Tradeoff Analysis Method)

Criterion	Operations Fishbone Diagram	Knowledge Modeling Feynman Technique	Operations Fault Tree Analysis	Architecture ATAM (Architecture Tradeoff Analysis Method)
Purposedifferent	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.	The Feynman Technique checks understanding by explaining a topic so that it stays easy for others to understand. It makes knowledge gaps visible before they become costly in everyday work.	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.	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	Low	High	High
Timedifferent	30-60 min	20-60 min	2-6 h	Several meetings plus preparation and analysis; total effort depends on scope
Participantsdifferent	2-8	1	3-8	Evaluation team, architects, and relevant stakeholders
Formatdifferent	Workshop	Async	Workshop + async	Workshop + async
Outputdifferent	Fishbone Diagram, Cause Categories, Investigation Backlog	Plain-language Explanation, Knowledge Gaps, Study Notes	Fault Tree, Critical Paths, Cause Hypotheses, Control Actions	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	Root causeQualityOperations	LearningKnowledgeUnderstanding	RiskRoot causeSafety	ArchitectureQualityRiskTradeoffsStakeholders

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