Linked.Archi UML 2.5.1 Metamodel Definition

RDF/OWL formalization of the OMG Unified Modeling Language (UML) 2.5.1 metamodel for use in the Linked.Archi architecture knowledge graph. Covers structural classifiers (Class, Interface, Component, Package), behavioral elements (Activity, StateMachine, Interaction), deployment concepts (Node, Artifact), and use cases (Actor, UseCase). Relationship types follow the Linked.Archi three-declaration qualified relationship pattern. This ontology is INFORMED BY the OMG Ontology Definition Metamodel (ODM, formal/2014-09-02) but does NOT apply ODM directly. ODM Annex D maps UML model instances (M1) to OWL; this ontology represents the UML metamodel itself (M2) as OWL classes so that UML model data can be typed in a knowledge graph. We adopt ODM principles (Class→owl:Class, Generalization→rdfs:subClassOf, Package→owl:Ontology) but depart from ODM for associations (three-declaration pattern), enumerations (SKOS), constraints (SHACL), and domain/range (arch:domainIncludes). See the skos:scopeNote for the full comparison. This is not an official OMG document. It is a Linked.Archi interpretation of the UML specification for semantic architecture modeling.

SHACL shapes for validating UML model data in the Linked.Archi knowledge graph. Covers relationship domain/range constraints, required properties, and structural integrity rules derived from the UML 2.5.1 specification.

Classification of UML metaclasses by diagram type and by metaclass category, aligned to the UML 2.5.1 specification structure.

UML 2.5.1 diagram types formalized as Linked.Archi viewpoints. Each of the 14 UML diagram types is represented as an arch:Viewpoint instance with its included concepts, purpose, and framed concerns.

The 14 UML diagram types organized into structural and behavioral categories, as defined in UML 2.5.1 Annex A.

Controlled vocabularies for UML model annotations — visibility kinds, aggregation kinds, parameter direction kinds, message sorts, pseudostate kinds, transition kinds, interaction operator kinds, and connector kinds. Modeled as SKOS concept schemes following Linked.Archi convention DD-5. These correspond to UML 2.5.1 enumerations that the ODM specification (Annex D.3.9) maps to either owl:oneOf or SKOS concept schemes. Linked.Archi uses SKOS for all enumerated value sets (see DD-5).