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| Criterion | ![]() Innovation Design Thinking | ![]() UX Research Personas | ![]() Product Discovery Kano Model | ![]() UX Research User Interviews |
|---|---|---|---|---|
Purposedifferent | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 features need to be distinguished by their effect on satisfaction, it makes expectations and surprises comparable. It separates basic needs, performance contribution, and delight. | 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. |
Complexitydifferent | High | Medium | Medium | Low |
Timedifferent | 1 Tag bis mehrere Wochen | 1-3 Tage | 1-2 Tage | 30–60 min per interview |
Participantsdifferent | 4-10 | Internes Team | 10-50 | 1 participant per interview |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Persona Profiles, Needs Summary, Scenario Notes | Kano Matrix, Feature Classes, Priority Themes | Interview Notes, Themes, Insight Summary |
Tagsno overlap | InnovationPrototypeResearch | ResearchCustomerSynthesis | SatisfactionPrioritizationCustomer | QualitativeResearchCustomerDiscovery |



