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| Criterion |  Architecture C4 Model |  Delivery Cost of Delay |  Delivery Communication Plan |  Decision Making Constraint Analysis |
|---|---|---|---|---|
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. | 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. | 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. | 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. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 1-4 h | 90-180 min | 45-90 min | 30-90 min |
Participantsdifferent | 1-5 | 3-8 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | CoD Table, Prioritization Sequence | Communication Plan, Channel Matrix, Message Cadence | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries |
Tagsno overlap | ArchitectureCommunicationVisualization | PrioritizationDeliveryEconomicsDecision | CommunicationStakeholdersDeliveryPlanning | ConstraintsDecisionPlanningOptions |