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| Criterion |  Delivery Communication Plan |  Architecture Architecture Decision Record |  Decision Making Constraint Analysis |  Architecture Request for Comments |
|---|---|---|---|---|
Purposedifferent | When many people need to be informed in parallel and messages would otherwise arrive unevenly or too late, a Communication Plan orders communication reliably. Channels, audiences, and cadences interlock so important information doesn't get lost. | 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. | 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. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 45-90 min | 15-45 min | 30-90 min | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 2-6 | 1-3 | 2-8 | 3-20 Reviewer |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Communication Plan, Channel Matrix, Message Cadence | ADR File, Decision Log, Rationale | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | CommunicationStakeholdersDeliveryPlanning | ArchitectureRationaleDocumentationGovernance | ConstraintsDecisionPlanningOptions | ArchitectureDecisionAsyncGovernance |