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| Criterion |  Product Strategy Lean Canvas |  UX Research User Interviews |  UX Research Personas |  Innovation Lean Startup |
|---|---|---|---|---|
Purposedifferent | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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. | 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 uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 45-90 min | 30–60 min per interview | 1-3 Tage | Wochen bis Monate je Lernzyklus |
Participantsdifferent | 1-6 | 1 participant per interview | Internes Team | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Interview Notes, Themes, Insight Summary | Persona Profiles, Needs Summary, Scenario Notes | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision |
Tagsno overlap | StartupLeanAssumptionsBusiness model | QualitativeResearchCustomerDiscovery | ResearchCustomerSynthesis | LeanStartupValidationMVP |