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| Criterion |  UX Research Customer Journey Mapping |  Knowledge Modeling Concept Mapping |  Operations 5 Whys |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | Concept Mapping arranges terms and relationships in a network that makes subject-matter connections tangible. It fits when a topic needs to be understood structurally rather than linearly. | 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. | 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 | Medium | Low | Medium |
Timedifferent | 2-4 h | 1-2 h | 15-30 min | 2-4 h |
Participantsdifferent | 4-10 | 1-8 | 2-6 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Journey Map, Pain-point List, Opportunity Backlog | Concept Map, Relationship Labels, Knowledge Gaps | Root cause notes, Countermeasures | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | JourneyServiceService design | KnowledgeConceptsMappingSensemaking | Root causeIncidentLeanProblem solving | Root causeSafetyIncident |