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| Criterion |  Product Discovery Problem Interview |  Product Strategy GIST Planning |  Product Discovery MVP Test Matrix |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | GIST Planning helps clarify target groups, value, goals, and priorities. It links customer value, product logic, and decision priorities, and captures the result as goals, an idea bank, and a step-project list. | 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. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-60 min je Interview | Wochen bis Monate je Goal | 45-75 min | 1-5 Tage |
Participantsdifferent | 5-12 Interviews | 3-10 | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Goals, Idea bank, Step-project list, Tasks, Learning reports | Test Matrix, Test Plan | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | DiscoveryInterviewsValidation | RoadmapOutcomesPlanningExperiments | ExperimentsValidationDiscoveryOptions | ValidationExperimentsDemandDiscovery |