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| Criterion |  Agile Ideal Days |  Systems Thinking Future Reality Tree |  Domain Modeling Context Map |
|---|---|---|---|
Purposedifferent | When effort needs to be thought of as real working time, it offers a simple common denominator for comparison. It sorts work by value, risk, and delivery ability. The result is captured as Ideal Day Estimates, Assumption Notes, and Capacity Caveats. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | When several contexts need to talk to each other, it makes their relationships and dependencies legible. It helps sort integration pressure and responsibilities across system boundaries. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 15-60 min | 2-4 h | 1-3 h |
Participantsdifferent | 2-9 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Context Map, Integration Patterns, Boundary Notes |
Tagsno overlap | EstimationEffortAgile | Theory of ConstraintsSystems thinkingChange | Domain-Driven DesignBoundariesStrategy |
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