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| Criterion |  Architecture Request for Comments |  Operations Barrier Analysis |  Systems Thinking Current Reality Tree |
|---|---|---|---|
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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 1-3 Wochen vom Draft bis zur Entscheidung | 2-4 h | 2-6 h |
Participantsdifferent | 3-20 Reviewer | 2-6 | 3-8 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | ArchitectureDecisionAsyncGovernance | Root causeSafetyIncident | Systems thinkingRoot causeConstraintsCausality |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
