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| Criterion |  Product Discovery Test Card |  Operations Getting Things Done |  Product Discovery Experiment Canvas |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
Purposedifferent | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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. | 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. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 20-35 min | 1-2 h Setup, laufend | 30-60 min | 45-75 min |
Participantsdifferent | 1-5 | 1 | 1-5 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Test Card with a pre-set threshold | Action Lists, Project List, Review Routine | Completed Experiment Canvas, Success Metric | Test Matrix, Test Plan |
Tagsno overlap | ExperimentsValidationDiscoveryHypothesis | ProductivityPlanningTasksExecution | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryOptions |