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| Criterion |  Product Discovery Opportunity Interview |  Operations ALPEN Method |  Product Discovery Problem Interview |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | 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. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 30-60 min je Interview | 10-20 min daily | 30-60 min je Interview | 1-5 Tage |
Participantsdifferent | 5-12 Interviews | 1 | 5-12 Interviews | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Interview Notes, Opportunity Themes, Customer Quotes | Daily Plan, Time Estimates, Review Notes | Problem Evidence, Risk Notes, Customer Segments | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | DiscoveryInterviewsOpportunityCustomer | PlanningTime managementProductivityOperations | DiscoveryInterviewsValidation | ValidationExperimentsDemandDiscovery |