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| Criterion |  Operations Time Blocking |  Product Discovery Problem Interview |  Product Discovery Fake Door Test |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
Purposedifferent | With a calendar that grows on request, the method makes available time explicit again. It combines appointments, focus work, and buffer into a more realistic day structure. | 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. | 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 15-30 min Planung, laufend | 30-60 min je Interview | 1-5 Tage | 30-60 min |
Participantsdifferent | 1 | 5-12 Interviews | Nutzertraffic | 1-5 |
Formatdifferent | Async | Workshop + async | Async | Workshop + async |
Outputdifferent | Blocked Calendar, Capacity View, Focus Plan | Problem Evidence, Risk Notes, Customer Segments | Click Data, Interest Signal, Learning Decision | Completed Experiment Canvas, Success Metric |
Tagsno overlap | PlanningTime managementFocus | DiscoveryInterviewsValidation | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryHypothesis |