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| Criterion |  Operations MORT Analysis |  Product Discovery Test Card |  Operations Barrier Analysis |  Operations Family Tree Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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. |
Complexitydifferent | High | Low | Medium | Medium |
Timedifferent | Mehrere Tage bis Wochen | 20-35 min | 2-4 h | 2-4 h |
Participantsdifferent | 2-6 | 1-5 | 2-6 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Test Card with a pre-set threshold | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Family Tree Diagram, Pattern Notes, Systemic Measures |
Tagsno overlap | Root causeSafetySystemicIncident | ExperimentsValidationDiscoveryHypothesis | Root causeSafetyIncident | Root causePatternsIncidentSystemic |