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| Criterion |  UX Research Customer Journey Mapping |  Operations A3 Problem Solving |  DevOps Blameless Postmortem |  Operations 5 Whys |
|---|---|---|---|---|
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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 2-4 h | 45-90 min | 30-90 min | 15-30 min |
Participantsdifferent | 4-10 | 2-5 | 3-12 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Journey Map, Pain-point List, Opportunity Backlog | A3 Report, Action Plan, Root Cause Analysis | Postmortem Doc, Action Items, Timeline | Root cause notes, Countermeasures |
Tagsno overlap | JourneyServiceService design | LeanProblem solvingCoachingOperations | Site Reliability EngineeringIncidentLearningReliability | Root causeIncidentLeanProblem solving |