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| Criterion |  Architecture Request for Comments |  Systems Thinking Future Reality Tree |  Systems Thinking Evaporating Cloud |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. | 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. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | 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. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 1-3 Wochen vom Draft bis zur Entscheidung | 2-4 h | 60-120 min | 15-45 min |
Participantsdifferent | 3-20 Reviewer | 3-8 | 2-8 | 1-3 |
Formatdifferent | Async | Workshop | Workshop | Async |
Outputdifferent | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureDecisionAsyncGovernance | Theory of ConstraintsSystems thinkingChange | Theory of ConstraintsAssumptionsSystems thinking | ArchitectureRationaleDocumentationGovernance |