Notations

Each notation is a profile over the same element graph. Profiles declare which symbols render which element kinds, the palette, and the relationship types they prefer. Each declares a fidelity level, raised only when test fixtures prove it.

• ArchiMate: all layers, with Exchange Format import and export.
• C4: context, container and deployment views, with Structurizr DSL import and export.
• BPMN: pools, lanes, tasks, events and gateways, with BPMN 2.0 XML import and export.
• ER: entities with attribute rows and keys (L2), exported as Postgres DDL, DBML and JSON Schema and imported from DDL.
• UML: class, component, deployment and use case diagrams (L1); sequence, state and activity come later.

• Capability map, value stream and org chart: a new view in one of these notations can be laid out from the model: capabilities nested by composition, stages in their precedes order with the capabilities they exercise, and units with their positions and roles as a tree.
• Security and data flow: trust boundaries, classified flows, STRIDE threats and NIST SP 800-53 controls (L1).

RACI, CRUD, skills and staffing are matrices in every model. UML sequence, state and activity diagrams are planned. On the roadmap