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| Criterion |  Agile T-Shirt Sizing |  Operations Root Cause Tree Analysis |
|---|---|---|
Purposedifferent | When effort only needs to be classified roughly, it makes comparability more important than false precision. It helps sort work quickly into manageable sizes. | 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. |
Complexitydifferent | Low | Medium |
Timedifferent | 15-45 min | 1-3 h |
Participantsdifferent | 2-12 | 2-8 |
Formatdifferent | Workshop + async | Workshop |
Outputdifferent | Size Buckets, Rough Backlog Map, Split Candidates | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | EstimationAgileRoadmap | Root causeTreeIncidentQuality |
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