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| Criterion |  Product Discovery Test Card |  Operations Ivy Lee Method |  Operations Eat the Frog |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | The method protects energy and attention for the task that creates the largest progress and is often postponed. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 20-35 min | 5-10 min daily | 15-90 min daily | 25-40 min |
Participantsdifferent | 1-5 | 1 | 1 | 1-5 |
Formatdifferent | Workshop + async | Async | Async | Workshop + async |
Outputdifferent | Test Card with a pre-set threshold | Daily Priority List, Completion Notes | Priority Task, Completion Note, Daily Focus | Learning Card with evidence and next action |
Tagsno overlap | ExperimentsValidationDiscoveryHypothesis | PrioritizationProductivityExecution | PrioritizationProductivityFocusExecution | ExperimentsValidationDiscoveryLearning |