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| Criterion |  Operations Getting Things Done |  Operations Ivy Lee Method |  Product Discovery Experiment Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | 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. | 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-2 h Setup, laufend | 5-10 min daily | 30-60 min | 20-35 min |
Participantsdifferent | 1 | 1 | 1-5 | 1-5 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | Action Lists, Project List, Review Routine | Daily Priority List, Completion Notes | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | ProductivityPlanningTasksExecution | PrioritizationProductivityExecution | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |