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Selected:Time Blocking Fishbone Diagram ATAM (Architecture Tradeoff Analysis Method)Failure Mode and Effects Analysis

Criterion	Operations Time Blocking	Operations Fishbone Diagram	Architecture ATAM (Architecture Tradeoff Analysis Method)	Operations Failure Mode and Effects Analysis
Purposedifferent	With a calendar that grows on request, the method makes available time explicit again. It combines appointments, focus work, and buffer into a more realistic day structure.	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.	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	Low	Low	High	High
Timedifferent	15-30 min Planung, laufend	30-60 min	Several meetings plus preparation and analysis; total effort depends on scope	2-6 h
Participantsdifferent	1	2-8	Evaluation team, architects, and relevant stakeholders	3-10
Formatdifferent	Async	Workshop	Workshop + async	Workshop
Outputdifferent	Blocked Calendar, Capacity View, Focus Plan	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	FMEA Table, Risk Priority, Mitigation Actions
Tagsno overlap	PlanningTime managementFocus	Root causeQualityOperations	ArchitectureQualityRiskTradeoffsStakeholders	RiskQualityOperationsRoot cause

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