#### IfcRelConnects

Natural language names

##### Semantic definitions at the entity

Entity definition

A connectivity relationship (IfcRelConnects) that connects objects under some criteria. As a general connectivity it does not imply constraints, however subtypes of the relationship define the applicable object types for the connectivity relationship and the semantics of the particular connectivity.

> HISTORY: New entity in IFC Release 2x.

##### Inherited definitions from supertypes

Entity inheritance
Attribute inheritance

# | Attribute | Type | Cardinality | Description | A
--- | --- | --- | --- | --- | ---
IfcRoot
1 | GlobalId | IfcGloballyUniqueId | [1:1] | Assignment of a globally unique identifier within the entire software world. | X
2 | OwnerHistory | IfcOwnerHistory | [1:1] | Assignment of the information about the current ownership of that object, including owning actor, application, local identification and information captured about the recent changes of the object, NOTE: only the last modification in stored. | X
3 | Name | IfcLabel | [0:1] | Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule. | X
4 | Description | IfcText | [0:1] | Optional description, provided for exchanging informative comments. | X
IfcRelationship
IfcRelConnects

##### Formal representations

XSD Specification
`<xs:element name="IfcRelConnects" type="ifc:IfcRelConnects" abstract="true" substitutionGroup="ifc:IfcRelationship" nillable="true"/>
<xs:complexType name="IfcRelConnects" abstract="true">
<xs:complexContent>
<xs:extension base="ifc:IfcRelationship"/>
</xs:complexContent>
</xs:complexType>
`
EXPRESS Specification
`ENTITY IfcRelConnects
ABSTRACT SUPERTYPE OF(ONEOF(IfcRelConnectsElements, IfcRelContainedInSpatialStructure, IfcRelVoidsElement))
SUBTYPE OF (IfcRelationship);
END_ENTITY;

EXPRESS-G diagram

`

Link to this page