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Selected:ATAM (Architecture Tradeoff Analysis Method)Eisenhower Matrix Root Cause Analysis Failure Mode and Effects Analysis

Criterion	Architecture ATAM (Architecture Tradeoff Analysis Method)	Decision Making Eisenhower Matrix	Operations Root Cause Analysis	Operations Failure Mode and Effects Analysis
Purposedifferent	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.	It separates true priorities from noise so it becomes clear what should be done now, scheduled, delegated, or dropped.	When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another.	For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability.
Complexitydifferent	High	Low	Medium	High
Timedifferent	Several meetings plus preparation and analysis; total effort depends on scope	15-30 min	1-4 h	2-6 h
Participantsdifferent	Evaluation team, architects, and relevant stakeholders	1-6	3-8	3-10
Formatdifferent	Workshop + async	Workshop + async	Workshop + async	Workshop
Outputdifferent	Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations	Eisenhower Matrix, Action List, Delegation Notes	Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan	FMEA Table, Risk Priority, Mitigation Actions
Tagsno overlap	ArchitectureQualityRiskTradeoffsStakeholders	PrioritizationFocusTasks	Root causeProblem solvingQualityIncident	RiskQualityOperationsRoot cause

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