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| Criterion |  Decision Making Constraint Analysis |  Architecture Request for Comments |  Architecture Architecture Decision Record |  Decision Making Decision Rights Mapping |
|---|---|---|---|---|
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. | 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. | In organizations with many stakeholders, it often blurs who actually decides and who is merely consulted. It separates options, evaluation criteria, and open risks. The result is captured as a Decision Rights matrix and an agreement. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 30-90 min | 1-3 Wochen vom Draft bis zur Entscheidung | 15-45 min | 90-180 min |
Participantsdifferent | 2-8 | 3-20 Reviewer | 1-3 | 4-12 |
Formatdifferent | Workshop + async | Async | Async | Workshop |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | ADR File, Decision Log, Rationale | Decision Rights Matrix, Agreement |
Tagsno overlap | ConstraintsDecisionPlanningOptions | ArchitectureDecisionAsyncGovernance | ArchitectureRationaleDocumentationGovernance | DecisionGovernanceAlignmentResponsibility |