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| Criterion |  Delivery Communication Plan |  Decision Making Pre-Mortem |  Architecture Software Architecture Canvas |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
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. | 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. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | 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 | Low | Low | Medium |
Timedifferent | 45-90 min | 20–45 min | 1-2 h | 60-120 min |
Participantsdifferent | 2-6 | Small cross-functional group | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Communication Plan, Channel Matrix, Message Cadence | Risk list, Mitigation plan, Assumption log | Architecture Canvas, Goals, Constraints, Quality Attributes | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | CommunicationStakeholdersDeliveryPlanning | RiskDecisionFailurePlanning | CanvasArchitectureAlignmentWorkshop | ArchitectureCommunicationStakeholdersCanvas |