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| Criterion | ![]() Product Discovery Test Card | ![]() Operations Fishbone Diagram |
|---|---|---|
Purposedifferent | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitysame | Low | Low |
Timedifferent | 20-35 min | 30-60 min |
Participantsdifferent | 1-5 | 2-8 |
Formatdifferent | Workshop + async | Workshop |
Outputdifferent | Test Card with a pre-set threshold | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | ExperimentsValidationDiscoveryHypothesis | Root causeQualityOperations |
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Methods with strong topical overlap with the current selection, not yet in the comparison.





