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| Criterion |  Architecture Architecture Decision Record |  Knowledge Modeling Knowledge Mapping |  Architecture C4 Model |  Knowledge Modeling Concept Mapping |
|---|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | Knowledge Mapping makes knowledge, gaps, and transfer paths visible across a field. It fits when expertise should not just exist but also be findable and transferable. | 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. | Concept Mapping arranges terms and relationships in a network that makes subject-matter connections tangible. It fits when a topic needs to be understood structurally rather than linearly. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 15-45 min | 1-3 h | 1-4 h | 1-2 h |
Participantsdifferent | 1-3 | 3-12 | 1-5 | 1-8 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Knowledge Map, Critical Knowledge Areas, Transfer Plan | Context Diagram, Container Diagram, Component Diagram | Concept Map, Relationship Labels, Knowledge Gaps |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | KnowledgeMappingRisk | ArchitectureCommunicationVisualization | KnowledgeConceptsMappingSensemaking |