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| Criterion |  Operations ALPEN Method |  Product Discovery Fake Door Test |  Product Discovery Problem Interview |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | 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 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 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 10-20 min daily | 1-5 Tage | 30-60 min je Interview | 25-40 min |
Participantsdifferent | 1 | Nutzertraffic | 5-12 Interviews | 1-5 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | Daily Plan, Time Estimates, Review Notes | Click Data, Interest Signal, Learning Decision | Problem Evidence, Risk Notes, Customer Segments | Learning Card with evidence and next action |
Tagsno overlap | PlanningTime managementProductivityOperations | ValidationExperimentsDemandDiscovery | DiscoveryInterviewsValidation | ExperimentsValidationDiscoveryLearning |