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| Criterion |  Operations Change Analysis |  Architecture Request for Comments |  Facilitation 3-Circle Venn Diagram |
|---|---|---|---|
Purposedifferent | 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. | 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. | When three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 45-120 min | 1-3 Wochen vom Draft bis zur Entscheidung | 15-45 min |
Participantsdifferent | 2-6 | 3-20 Reviewer | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Venn Diagram, Overlap Notes, Differentiators |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | ArchitectureDecisionAsyncGovernance | ComparisonFacilitationAlignment |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
