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| Criterion |  Architecture C4 Model |  Decision Making Decision Tree |  Delivery Communication Plan |  Delivery Cost of Delay |
|---|---|---|---|---|
Purposedifferent | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | For decisions with follow-on paths and dependencies, a linear comparison is often not enough. A Decision Tree shows how options branch under conditions and which consequences hang on each branch. | 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. | Helps clarify scope, order, and delivery flow in concrete terms. It makes work, constraints, and sequence manageable. The result is captured as a Cost of Delay table and prioritization sequence. |
Complexitydifferent | Low | Medium | Low | High |
Timedifferent | 1-4 h | 30-90 min | 45-90 min | 90-180 min |
Participantsdifferent | 1-5 | 1-6 | 2-6 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Decision Tree, Option Map, Assumption List | Communication Plan, Channel Matrix, Message Cadence | CoD Table, Prioritization Sequence |
Tagsno overlap | ArchitectureCommunicationVisualization | DecisionTreeOptions | CommunicationStakeholdersDeliveryPlanning | PrioritizationDeliveryEconomicsDecision |