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| Criterion |  Agile Bucket System |  Systems Thinking Current Reality Tree |  Systems Thinking Iceberg Model |  Systems Thinking Behavior Over Time Graph |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | The Iceberg Model separates visible events from patterns, structures, and mental models. This turns a single observation into a deeper understanding of why a problem keeps recurring. | A Behavior Over Time Graph shows how a metric or observation develops over time. The method makes trends, breaks, and recurring patterns visible that get lost in snapshots. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 30-90 min | 2-6 h | 30-60 min | 20-45 min |
Participantsdifferent | 3-12 | 3-8 | 2-10 | 1-10 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Bucketed Backlog, Relative Estimates, Split Candidates | Current Reality Tree, Core Problems, Intervention Ideas | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Behavior Over Time Graph, Trend Hypotheses, Key Events |
Tagsno overlap | EstimationBacklogRelative sizing | Systems thinkingRoot causeConstraintsCausality | Systems thinkingRoot causePatterns | Systems thinkingPatternsDynamics |