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| Criterion |  Operations Ivy Lee Method |  Product Discovery Fake Door Test |  Operations Getting Things Done |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | With many open commitments and ideas in daily life, a reliable external storage system emerges. The method relieves the mind so priority and context don't have to compete in memory. | 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 | 5-10 min daily | 1-5 Tage | 1-2 h Setup, laufend | 25-40 min |
Participantsdifferent | 1 | Nutzertraffic | 1 | 1-5 |
Formatdifferent | Async | Async | Async | Workshop + async |
Outputdifferent | Daily Priority List, Completion Notes | Click Data, Interest Signal, Learning Decision | Action Lists, Project List, Review Routine | Learning Card with evidence and next action |
Tagsno overlap | PrioritizationProductivityExecution | ValidationExperimentsDemandDiscovery | ProductivityPlanningTasksExecution | ExperimentsValidationDiscoveryLearning |