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| Criterion |  Operations Barrier Analysis |  Operations Family Tree Analysis |  UX Research Customer Journey Mapping |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | When a user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. | 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 | Medium | Medium | Low |
Timedifferent | 2-4 h | 2-4 h | 2-4 h | 15-30 min |
Participantsdifferent | 2-6 | 2-6 | 4-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Family Tree Diagram, Pattern Notes, Systemic Measures | Journey Map, Pain-point List, Opportunity Backlog | Root cause notes, Countermeasures |
Tagsno overlap | Root causeSafetyIncident | Root causePatternsIncidentSystemic | JourneyServiceService design | Root causeIncidentLeanProblem solving |