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| Criterion |  UX Research Personas |  Operations 5 Whys |  UX Design Customer Journey Canvas |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | When target groups stay too vague and teams talk about the same people differently, personas create a shared, solid picture of usage. Condensed profiles make needs, contexts, and differences tangible enough for decisions. | 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. | When a journey needs to be understood across several phases, it arranges experience, touchpoints, and opportunities into one picture. It makes gaps and friction along the user path clear. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 1-3 Tage | 15-30 min | 1-3 h | 1-4 h |
Participantsdifferent | Internes Team | 2-6 | 3-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Persona Profiles, Needs Summary, Scenario Notes | Root cause notes, Countermeasures | Customer Journey Canvas, Pain Points, Experience Opportunities | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | ResearchCustomerSynthesis | Root causeIncidentLeanProblem solving | JourneyCustomerService designCanvas | Root causeProblem solvingQualityIncident |