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Selected:Root Cause Tree AnalysisFamily Tree AnalysisFailure Mode and Effects AnalysisRoot Cause Analysis
| Criterion |  Operations Root Cause Tree Analysis |  Operations Family Tree Analysis |  Operations Failure Mode and Effects Analysis |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | 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 a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | 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. | 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. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 1-3 h | 2-4 h | 2-6 h | 1-4 h |
Participantsdifferent | 2-8 | 2-6 | 3-10 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Family Tree Diagram, Pattern Notes, Systemic Measures | FMEA Table, Risk Priority, Mitigation Actions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tags1 shared | Root causeTreeIncidentQuality | Root causePatternsIncidentSystemic | RiskQualityOperationsRoot cause | Root causeProblem solvingQualityIncident |