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| Criterion |  UX Research Customer Journey Mapping |  Operations A3 Problem Solving |  UX Research Affinity Diagramming |  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. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | 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 | Low | Low |
Timedifferent | 2-4 h | 45-90 min | 45–90 min | 15-30 min |
Participantsdifferent | 4-10 | 2-5 | 3-10 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Journey Map, Pain-point List, Opportunity Backlog | A3 Report, Action Plan, Root Cause Analysis | Theme clusters, Insight statements, Opportunity areas | Root cause notes, Countermeasures |
Tagsno overlap | JourneyServiceService design | LeanProblem solvingCoachingOperations | SynthesisQualitativeRoot cause | Root causeIncidentLeanProblem solving |