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Selected:Future Reality TreeARID (Active Reviews for Intermediate Designs)Current Reality TreeChange Analysis
| Criterion |  Systems Thinking Future Reality Tree |  Architecture ARID (Active Reviews for Intermediate Designs) |  Systems Thinking Current Reality Tree |  Operations Change Analysis |
|---|---|---|---|---|
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. | 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. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | 2-4 h | 2–4 h review as a planning range; preparation and evaluation additional | 2-6 h | 45-120 min |
Participantsdifferent | 3-8 | Designers, developers as users, and facilitation | 3-8 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | 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 | Current Reality Tree, Core Problems, Intervention Ideas | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | ArchitectureEngineeringFeedbackValidationTasks | Systems thinkingRoot causeConstraintsCausality | ChangeRoot causeTroubleshootingComparison |