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| Criterion |  UX Research Customer Journey Mapping |  DevOps Blameless Postmortem |  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. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | 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 | 30-90 min | 15-30 min | 2-4 h |
Participantsdifferent | 4-10 | 3-12 | 2-6 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Journey Map, Pain-point List, Opportunity Backlog | Postmortem Doc, Action Items, Timeline | Root cause notes, Countermeasures | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | JourneyServiceService design | Site Reliability EngineeringIncidentLearningReliability | Root causeIncidentLeanProblem solving | Root causeSafetyIncident |