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| Criterion |  UX Research Personas |  Operations Causal Factor Analysis |  Systems Thinking Current Reality Tree |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | When target groups stay too vague and teams talk about the same people differently, personas create a shared, solid picture of usage. Condensed profiles make needs, contexts, and differences tangible enough for decisions. | 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | 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. |
Complexitydifferent | Medium | High | High | Medium |
Timedifferent | 1-3 Tage | 2-6 h | 2-6 h | 2-4 h |
Participantsdifferent | Internes Team | 3-10 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Persona Profiles, Needs Summary, Scenario Notes | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Current Reality Tree, Core Problems, Intervention Ideas | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | ResearchCustomerSynthesis | CausalityIncidentRoot causeTimeline | Systems thinkingRoot causeConstraintsCausality | Root causeSafetyIncident |