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| Criterion |  Architecture C4 Model |  Delivery Communication Plan |  Product Strategy Impact Mapping |  Business Strategy GAP 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. | 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 a goal needs to be connected to several possible paths, it shows chains of impact instead of feature lists. It connects business goal, behavior change, and measures. | GAP Analysis compares the current state with a target picture and makes the distance manageable. It becomes useful when, ahead of new initiatives, it must become clear which capabilities, processes, or resources are missing. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 1-4 h | 45-90 min | 45-90 min | 1-3 h |
Participantsdifferent | 1-5 | 2-6 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Communication Plan, Channel Matrix, Message Cadence | Impact Map, Outcome Hypotheses, Delivery Options | Gap Matrix, Action Plan, Risk Notes |
Tagsno overlap | ArchitectureCommunicationVisualization | CommunicationStakeholdersDeliveryPlanning | OutcomesStrategyBehaviorPlanning | StrategyAnalysisPlanning |