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| Criterion |  Knowledge Modeling IBIS |  Operations MORT Analysis |  Decision Making Argument Mapping |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 1-3 h | Mehrere Tage bis Wochen | 1-3 h | 15-30 min |
Participantsdifferent | 2-8 | 2-6 | 1-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Issue Map, Positions, Argument Notes | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Argument Map, Evidence Gaps, Decision Rationale | Root cause notes, Countermeasures |
Tagsno overlap | RationaleKnowledgeDecision | Root causeSafetySystemicIncident | SensemakingDecisionRationale | Root causeIncidentLeanProblem solving |