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| Criterion |  Architecture Architecture Decision Record |  Systems Thinking Future Reality Tree |  Decision Making Argument Mapping |  Decision Making DACI |
|---|---|---|---|---|
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. | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. |
Complexitydifferent | Low | High | Medium | Low |
Timedifferent | 15-45 min | 2-4 h | 1-3 h | 30-60 min |
Participantsdifferent | 1-3 | 3-8 | 1-8 | 2-10 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Argument Map, Evidence Gaps, Decision Rationale | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | Theory of ConstraintsSystems thinkingChange | SensemakingDecisionRationale | DecisionRolesGovernanceAlignment |