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| Criterion |  Decision Making Constraint Analysis |  Architecture Request for Comments |  Operations Change Analysis |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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 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 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 | Low | Medium | Medium | Low |
Timedifferent | 30-90 min | 1-3 Wochen vom Draft bis zur Entscheidung | 45-120 min | 15-45 min |
Participantsdifferent | 2-8 | 3-20 Reviewer | 2-6 | 1-3 |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Change Matrix, Cause Hypotheses, Validation Questions, Action List | ADR File, Decision Log, Rationale |
Tagsno overlap | ConstraintsDecisionPlanningOptions | ArchitectureDecisionAsyncGovernance | ChangeRoot causeTroubleshootingComparison | ArchitectureRationaleDocumentationGovernance |