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Selected:Causal Factor AnalysisFailure Mode and Effects AnalysisRoot Cause Tree Analysis8D Problem Solving
| Criterion |  Operations Causal Factor Analysis |  Operations Failure Mode and Effects Analysis |  Operations Root Cause Tree Analysis |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | High | High | Medium | High |
Timedifferent | 2-6 h | 2-6 h | 1-3 h | 1-6 Wochen |
Participantsdifferent | 3-10 | 3-10 | 2-8 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | FMEA Table, Risk Priority, Mitigation Actions | Cause Tree, Evidence Notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tags1 shared | CausalityIncidentRoot causeTimeline | RiskQualityOperationsRoot cause | Root causeTreeIncidentQuality | QualityProblem solvingRoot cause |