| QName | Type | Fixed | Default | Use | Inheritable | Annotation |
|---|---|---|---|---|---|---|
| Description | ifc:IfcText | optional | ||||
| Name | ifc:IfcLabel | optional | ||||
| href | xs:anyURI | optional | ||||
| id | xs:ID | optional | ||||
| path | xs:NMTOKENS | optional | ||||
| pos | restriction of list of xs:integer | optional | ||||
| ref | xs:IDREF | optional |
<xs:element name="IfcExternalReferenceRelationship" type="ifc:IfcExternalReferenceRelationship" substitutionGroup="ifc:IfcResourceLevelRelationship" nillable="true"/> |