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| Criterion |  Operations Family Tree Analysis |  Innovation Design Thinking |  Operations Barrier Analysis |  Operations Causal Factor Analysis |
|---|---|---|---|---|
Purposedifferent | 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 complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. |
Complexitydifferent | Medium | High | Medium | High |
Timedifferent | 2-4 h | 1 Tag bis mehrere Wochen | 2-4 h | 2-6 h |
Participantsdifferent | 2-6 | 4-10 | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Family Tree Diagram, Pattern Notes, Systemic Measures | Problem Statement, Prototype, Test Learnings | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | Root causePatternsIncidentSystemic | InnovationPrototypeResearch | Root causeSafetyIncident | CausalityIncidentRoot causeTimeline |