Linked.Archi C4 Model Metamodel Definition

An RDF/OWL ontology for the C4 model — the abstract, notation-independent software architecture visualization model created by Simon Brown. Defines the four core abstraction levels (Person, Software System, Container, Component) and their relationships. This ontology covers the C4 model itself, not any specific tooling implementation. For Structurizr-specific concepts (deployment nodes, infrastructure nodes, deployment environments), see the Structurizr extension ontology (structurizr-onto.ttl) which imports this ontology.

SHACL shapes for validating C4 model data. Covers the abstract C4 model relationships (Using, ContainerContainment, ComponentContainment). For Structurizr deployment shapes, see structurizr-shapes.ttl.

Classification of C4 model elements by abstraction level.

C4 model viewpoints corresponding to the four abstraction levels defined by Simon Brown. Each level zooms into the previous one, providing progressively more detail. The Deployment diagram is an additional cross-cutting viewpoint.

The four C4 abstraction levels plus the Deployment diagram, as defined by Simon Brown at c4model.com.

A C4-based system overview document progressing from high-level context through containers to deployment. Suitable for onboarding new team members and architecture reviews.

A detailed design document for a specific container, showing its internal component structure and dynamic behavior.

Controlled vocabularies for C4 model annotations.

Stakeholder-specific rendering themes for C4 diagrams.