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| Criterion |  Operations Time Blocking |  Product Discovery Problem Interview |  Product Discovery Learning Card |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 15-30 min Planung, laufend | 30-60 min je Interview | 25-40 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 1 | 5-12 Interviews | 1-5 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Blocked Calendar, Capacity View, Focus Plan | Problem Evidence, Risk Notes, Customer Segments | Learning Card with evidence and next action | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | PlanningTime managementFocus | DiscoveryInterviewsValidation | ExperimentsValidationDiscoveryLearning | ExperimentsValidationDiscoveryAssumptions |