| Name | 
Description | 
  | 
| CategoryOwnsSubCategories | 
Relates a parent Category to SubCategory child elements. | 
  | 
| DefinitionGroupGroupsDefinitions | 
Relates a DefinitionGroup to its DefinitionElement members. | 
  | 
| DrawingGraphicRepresentsElement | 
Relates a DrawingGraphic to the Element that it represents | 
  | 
| ElementDrivesElement | 
A Relationship indicating that one Element drives another Element. | 
  | 
| ElementEncapsulatesElements | 
Relates a parent Element to child Elements which represent hidden parts of the Entity. | 
  | 
| ElementGroupsMembers | 
An ElementRefersToElements relationship where one Element groups a set of other Elements. | 
  | 
| ElementOwnsChildElements | 
Relates a parent Element to child Elements which represent parts of the Entity modeled by the parent Element. | 
  | 
| ElementOwnsExternalSourceAspects | 
Relates an Element and an ExternalSourceAspect that it owns. | 
  | 
| ElementOwnsMultiAspects | 
Relates an Element and an ElementMultiAspect that it owns. | 
  | 
| ElementOwnsUniqueAspect | 
Relates an Element and an ElementUniqueAspect that it owns. | 
  | 
| ElementRefersToElements | 
A Relationship where one Element refers to another Element | 
  | 
| ExternalSourceAttachmentAttachesSource | 
Relates an ExternalSource to the RepositoryLink that it is persisted in. | 
  | 
| ExternalSourceGroupGroupsSources | 
Relates an ExternalSourceGroup to its ExternalSource members. | 
  | 
| ExternalSourceIsInRepository | 
Relates an ExternalSource to the RepositoryLink that it is persisted in. | 
  | 
| ExternalSourceOwnsAttachments | 
Relates a parent ExternalSource to its ExternalSourceAttachment children. | 
  | 
| FolderContainsRepositories | 
Relates a parent FolderLink to its RepositoryLink children. | 
  | 
| GeometricElement2dHasTypeDefinition | 
Relates a GeometricElement2d to its TypeDefinitionElement | 
  | 
| GeometricElement3dHasTypeDefinition | 
Relates a GeometricElement3d to its TypeDefinitionElement | 
  | 
| GraphicalElement2dIsOfType | 
Relates a GraphicalElement2d to its GraphicalType2d | 
  | 
| GraphicalElement3dRepresentsElement | 
Relates a GraphicalElement3d to the Element that it represents | 
  | 
| GroupImpartsToMembers | 
Represents group membership where the group Element (and its properties) impart information about the member Elements above mere membership. | 
  | 
| PhysicalElementAssemblesElements | 
Relates a parent PhysicalElement to PhysicalElement children that it assembles. | 
  | 
| PhysicalElementIsOfPhysicalMaterial | 
Relates a PhysicalElement to its PhysicalMaterial | 
  | 
| PhysicalElementIsOfType | 
Relates a PhysicalElement to its PhysicalType | 
  | 
| PhysicalTypeIsOfPhysicalMaterial | 
Relates a PhysicalType to its PhysicalMaterial | 
  | 
| Relationship | 
Base class for all link table ECRelationships | 
  | 
| Relationships | 
Manages Relationships. | 
  | 
| RenderMaterialOwnsRenderMaterials | 
Relates a parent RenderMaterial to RenderMaterial child elements. | 
  | 
| SheetIndexFolderOwnsEntries | 
Relates a SheetIndexFolder to the SheetIndexEntry's that it contains. | 
  | 
| SheetIndexOwnsEntries | 
Relates a SheetIndex to the [SheetIndexEntry]]'s that it contains. | 
  | 
| SheetIndexReferenceRefersToSheetIndex | 
Relates a SheetIndexReference to a SheetIndex it refers. | 
  | 
| SheetReferenceRefersToSheet | 
Relates a SheetReference and Sheet that it refers. | 
  | 
| SpatialLocationIsOfType | 
Relates a SpatialLocationElement to its SpatialLocationType | 
  | 
| SubjectOwnsPartitionElements | 
Relates a parent Subject to InformationPartitionElement child elements. | 
  | 
| SubjectOwnsSubjects | 
Relates a parent Subject to Subject child elements. | 
  | 
| SynchronizationConfigProcessesSources | 
Relates a SynchronizationConfigLink to N ExternalSource instances. | 
  | 
| SynchronizationConfigSpecifiesRootSources | 
Relates a SynchronizationConfigLink to root ExternalSource instances. | 
  |