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| Criterion |  UX Research User Interviews |  Delivery RAID Log |  Product Discovery Fake Door Test |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
Purposedifferent | 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. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 30–60 min per interview | 30 min Setup, dann laufend | 1-5 Tage | 45-75 min |
Participantsdifferent | 1 participant per interview | 1-3 maintaining, briefing for everyone | Nutzertraffic | 2-8 |
Formatdifferent | Workshop + async | Async | Async | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | RAID Log, Status Report Source | Click Data, Interest Signal, Learning Decision | Test Matrix, Test Plan |
Tagsno overlap | QualitativeResearchCustomerDiscovery | RiskTrackingStakeholdersGovernance | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryOptions |