View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
Selected:Fault Tree AnalysisOntology Design PatternsFailure Mode and Effects AnalysisFishbone Diagram
| Criterion |  Operations Fault Tree Analysis |  Knowledge Modeling Ontology Design Patterns |  Operations Failure Mode and Effects Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | Ontology Design Patterns provide reusable building blocks for recurring modeling problems. The method brings structure to the search for clean concepts, relationships, and roles. | 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 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. |
Complexitydifferent | High | Medium | High | Low |
Timedifferent | 2-6 h | 1-3 h pro Pattern | 2-6 h | 30-60 min |
Participantsdifferent | 3-8 | 1-6 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Selected Patterns, Adapted Schema Fragments, Pattern Documentation | FMEA Table, Risk Priority, Mitigation Actions | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | RiskRoot causeSafety | OntologyPatternsReuseSemanticModeling | RiskQualityOperationsRoot cause | Root causeQualityOperations |