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Selected:Assumption Surfacing Causal Factor Analysis Fishbone Diagram Failure Mode and Effects Analysis

Criterion	Decision Making Assumption Surfacing	Operations Causal Factor Analysis	Operations Fishbone Diagram	Operations Failure Mode and Effects Analysis
Purposedifferent	Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it.	For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events.	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.	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	High	Low	High
Timedifferent	45-90 min	2-6 h	30-60 min	2-6 h
Participantsdifferent	2-8	3-10	2-8	3-10
Formatdifferent	Workshop + async	Workshop + async	Workshop	Workshop
Outputdifferent	Assumption List, Critical Assumptions, Learning Plan	Event Timeline, Causal Factor Chart, Cause List, Corrective Actions	Fishbone Diagram, Cause Categories, Investigation Backlog	FMEA Table, Risk Priority, Mitigation Actions
Tagsno overlap	AssumptionsRiskDecisionDiscovery	CausalityIncidentRoot causeTimeline	Root causeQualityOperations	RiskQualityOperationsRoot cause

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