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| Criterion |  Systems Thinking Current Reality Tree |  Agile Affinity Estimation |  Operations Barrier Analysis |
|---|---|---|---|
Purposedifferent | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | 2-6 h | 30-90 min | 2-4 h |
Participantsdifferent | 3-8 | 3-12 | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Current Reality Tree, Core Problems, Intervention Ideas | Affinity Size Map, Grouped Estimates, Unclear Items | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Systems thinkingRoot causeConstraintsCausality | EstimationBacklogRelative sizing | Root causeSafetyIncident |
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