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| Criterion |  Operations Time Blocking |  Product Discovery Problem Interview |  Product Discovery Solution Interview |
|---|---|---|---|
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 a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 15-30 min Planung, laufend | 30-60 min je Interview | 30-60 min je Interview |
Participantsdifferent | 1 | 5-12 Interviews | 5-10 Interviews |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Blocked Calendar, Capacity View, Focus Plan | Problem Evidence, Risk Notes, Customer Segments | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | PlanningTime managementFocus | DiscoveryInterviewsValidation | ValidationInterviewsPrototype |
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