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| Criterion |  Operations Gemba Walk |  Operations ABC Analysis |  Product Discovery Test Card |
|---|---|---|---|
Purposedifferent | 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. | 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitysame | Low | Low | Low |
Timedifferent | 30-120 min | 30-60 min | 20-35 min |
Participantsdifferent | 2-6 | 1-5 | 1-5 |
Formatdifferent | Workshop | Async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | ABC Classification, Focus Rules, Control List | Test Card with a pre-set threshold |
Tagsno overlap | LeanObservationProcessOperations | PrioritizationOperationsPortfolio | ExperimentsValidationDiscoveryHypothesis |
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