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| Criterion |  Systems Thinking Future Reality Tree |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Assumption Mapping |
|---|---|---|---|
Purposedifferent | 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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | 2-4 h | 2–4 h review as a planning range; preparation and evaluation additional | 45-60 min |
Participantsdifferent | 3-8 | Designers, developers as users, and facilitation | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | ArchitectureEngineeringFeedbackValidationTasks | AssumptionsRiskExperimentsValidation |
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