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| Criterion |  Operations Ivy Lee Method |  Operations Getting Things Done |  Product Discovery Learning Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
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. | 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. | 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. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 5-10 min daily | 1-2 h Setup, laufend | 25-40 min | 1-5 Tage |
Participantsdifferent | 1 | 1 | 1-5 | Nutzertraffic |
Formatdifferent | Async | Async | Workshop + async | Async |
Outputdifferent | Daily Priority List, Completion Notes | Action Lists, Project List, Review Routine | Learning Card with evidence and next action | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | PrioritizationProductivityExecution | ProductivityPlanningTasksExecution | ExperimentsValidationDiscoveryLearning | ValidationExperimentsDemandDiscovery |