Relationships

An ArchiRelationship represents a semantic ArchiMate relationship — Serving, Assignment, Realization, Access, Composition, Aggregation, Association, or any other type. As with elements, coverage is generic.

Endpoints

interface ArchiRelationship {
  sourceId: string; // id of the source element (occasionally another relationship)
  targetId: string; // id of the target element (occasionally another relationship)
}

The domain model allows a relationship to be the source or target of another relationship. When traversing, resolve nodes from both the elements and relationships collections (see Impact analysis).

Raw and semantic types

Exactly like elements, relationships expose both the verbatim xsiType (e.g. "archimate:ServingRelationship") and the stripped type (e.g. "ServingRelationship").

Relationship-specific native attributes

Three relationship types carry native attributes that the parser decodes semantically. For every other relationship type, the fields are null:

Relationship	Field	Values	Default when absent
Access	accessType	'Write' | 'Read' | 'Unspecified' | 'ReadWrite'	'Write' (Archi’s native default)
Influence	strength	free text, e.g. "+", "-"	null (no modifier set)
Association	directed	boolean	false

Each attribute has a dedicated page:

• Access relationships
• Influence relationships
• Association relationships

Example

// All access relationships together with their resolved endpoints
const accessRelationships = model.relationships.filter(
  (r) => r.type === 'AccessRelationship',
);

const byId = new Map(model.elements.map((e) => [e.id, e]));

for (const rel of accessRelationships) {
  console.log(
    byId.get(rel.sourceId)?.name,
    rel.accessType,
    byId.get(rel.targetId)?.name,
  );
}