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| Criterion |  Architecture C4 Model |  Facilitation Alignment Mapping |  Facilitation Nominal Group Technique |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
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 several people work toward one goal but hold different mental maps, Alignment Mapping makes the discrepancies visible. It arranges goals, assumptions, and priorities so shared direction becomes verifiable. | When loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting. | 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 | Medium | Medium |
Timedifferent | 1-4 h | 1-2 h | 60-120 min | 60-120 min |
Participantsdifferent | 1-5 | 4-12 | 5-12 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Alignment Map, Open Issues, Decision Questions | Ranked Ideas, Clarified Options, Group Priority | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | ArchitectureCommunicationVisualization | AlignmentStakeholdersStrategyFacilitation | FacilitationPrioritizationVotingInclusion | ArchitectureCommunicationStakeholdersCanvas |