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| Criterion |  UX Research Personas |  Operations Kaizen Event |  UX Research User Interviews |  Operations A3 Problem Solving |
|---|---|---|---|---|
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 tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-3 Tage | 0.5-5 Tage | 30–60 min per interview | 45-90 min |
Participantsdifferent | Internes Team | 4-10 | 1 participant per interview | 2-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Persona Profiles, Needs Summary, Scenario Notes | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Interview Notes, Themes, Insight Summary | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | ResearchCustomerSynthesis | LeanContinuous improvementOperations | QualitativeResearchCustomerDiscovery | LeanProblem solvingCoachingOperations |