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| Criterion |  Systems Thinking Current Reality Tree |  Agile Bucket System |  Operations Causal Factor 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 a large batch of work needs a fast, rough estimate, it sorts items into predefined size buckets. It sorts work by value, risk, and delivery ability. The result is captured as a Bucketed Backlog, Relative Estimates, and Split Candidates. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. |
Complexitydifferent | High | Medium | High |
Timedifferent | 2-6 h | 30-90 min | 2-6 h |
Participantsdifferent | 3-8 | 3-12 | 3-10 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Current Reality Tree, Core Problems, Intervention Ideas | Bucketed Backlog, Relative Estimates, Split Candidates | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | Systems thinkingRoot causeConstraintsCausality | EstimationBacklogRelative sizing | CausalityIncidentRoot causeTimeline |
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