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| Criterion |  UX Research Personas |  UX Design Service Blueprinting |  Operations 5 Whys |  Operations Kepner-Tregoe |
|---|---|---|---|---|
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. | When a service experience is spread across several touchpoints, it brings frontstage and backstage together. It shows where user contact and internal responsibility must fit. | 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 disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Medium | High | Low | High |
Timedifferent | 1-3 Tage | 0.5-2 Tage | 15-30 min | 2-8 h |
Participantsdifferent | Internes Team | 6-12 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Persona Profiles, Needs Summary, Scenario Notes | Service Blueprint, Fail Points, Ownership Map | Root cause notes, Countermeasures | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | ResearchCustomerSynthesis | Service designOperationsJourneyBlueprint | Root causeIncidentLeanProblem solving | Problem solvingRoot causeDecisionOperations |