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| Criterion |  Operations Root Cause Tree Analysis |  Product Discovery Test Card |
|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Low |
Timedifferent | 1-3 h | 20-35 min |
Participantsdifferent | 2-8 | 1-5 |
Formatdifferent | Workshop | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Test Card with a pre-set threshold |
Tagsno overlap | Root causeTreeIncidentQuality | ExperimentsValidationDiscoveryHypothesis |
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