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| Criterion |  Operations ABC Analysis |  Operations Gemba Walk |  Product Discovery Experiment Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 30-60 min | 30-120 min | 30-60 min | 20-35 min |
Participantsdifferent | 1-5 | 2-6 | 1-5 | 1-5 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | ABC Classification, Focus Rules, Control List | Observation Notes, Improvement Ideas | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | PrioritizationOperationsPortfolio | LeanObservationProcessOperations | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |