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| Criterion |  Decision Making Pre-Mortem |  Architecture Request for Comments |  Delivery Communication Plan |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 20–45 min | 1-3 Wochen vom Draft bis zur Entscheidung | 45-90 min | 60-120 min |
Participantsdifferent | Small cross-functional group | 3-20 Reviewer | 2-6 | 2-8 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop + async |
Outputdifferent | Risk list, Mitigation plan, Assumption log | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Communication Plan, Channel Matrix, Message Cadence | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | RiskDecisionFailurePlanning | ArchitectureDecisionAsyncGovernance | CommunicationStakeholdersDeliveryPlanning | ArchitectureCommunicationStakeholdersCanvas |