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| Criterion |  Delivery RAID Log |  UX Research User Interviews |  Product Discovery Fake Door Test |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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 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 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 30 min Setup, dann laufend | 30–60 min per interview | 1-5 Tage | 45-60 min |
Participantsdifferent | 1-3 maintaining, briefing for everyone | 1 participant per interview | Nutzertraffic | 2-8 |
Formatdifferent | Async | Workshop + async | Async | Workshop + async |
Outputdifferent | RAID Log, Status Report Source | Interview Notes, Themes, Insight Summary | Click Data, Interest Signal, Learning Decision | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RiskTrackingStakeholdersGovernance | QualitativeResearchCustomerDiscovery | ValidationExperimentsDemandDiscovery | AssumptionsRiskExperimentsValidation |