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| Criterion |  Architecture Architecture Decision Record |  Systems Thinking Future Reality Tree |  Operations Change Analysis |  Systems Thinking Evaporating Cloud |
|---|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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. | 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. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 15-45 min | 2-4 h | 45-120 min | 60-120 min |
Participantsdifferent | 1-3 | 3-8 | 2-6 | 2-8 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | Theory of ConstraintsSystems thinkingChange | ChangeRoot causeTroubleshootingComparison | Theory of ConstraintsAssumptionsSystems thinking |