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| Criterion |  Operations Failure Mode and Effects Analysis |  Decision Making Pre-Mortem |  Operations Root Cause Tree Analysis |
|---|---|---|---|
Purposedifferent | 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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 2-6 h | 20–45 min | 1-3 h |
Participantsdifferent | 3-10 | Small cross-functional group | 2-8 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | Risk list, Mitigation plan, Assumption log | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | RiskQualityOperationsRoot cause | RiskDecisionFailurePlanning | Root causeTreeIncidentQuality |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
