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| Criterion |  Operations Time Blocking |  Product Discovery Solution Interview |  Product Discovery Hypothesis Prioritization Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
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 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. | When many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 15-30 min Planung, laufend | 30-60 min je Interview | 60-90 min | 20-35 min |
Participantsdifferent | 1 | 5-10 Interviews | 3-8 | 1-5 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Blocked Calendar, Capacity View, Focus Plan | Solution Feedback, Objection List, Validation Notes | Prioritization Canvas, Hypothesis Backlog | Test Card with a pre-set threshold |
Tagsno overlap | PlanningTime managementFocus | ValidationInterviewsPrototype | ExperimentsPrioritizationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |