IfcResourceLevelRelationship

BACnet MVD

#### IfcResourceLevelRelationship

Natural language names

| allgemeine Relation
| Resource Level Relationship

Change log

Item | SPF | XML | Change | Description
--- | --- | --- | --- | ---
IFC2x3 to IFC4
IfcResourceLevelRelationship |  |  | ADDED |

##### Semantic definitions at the entity

Entity definition

IfcResourceLevelRelationship is an abstract base entity for relationships between resource-level entities.

> HISTORY New entity in IFC4.

Attribute definitions

# | Attribute | Type | Cardinality | Description | B
--- | --- | --- | --- | --- | ---
1 | Name | IfcLabel | ? | A name used to identify or qualify the relationship. |  | X
2 | Description | IfcText | ? | A description that may apply additional information about the relationship. |  | X

##### Inherited definitions from supertypes

Entity inheritance
Attribute inheritance

# | Attribute | Type | Cardinality | Description | B
--- | --- | --- | --- | --- | ---
IfcResourceLevelRelationship
1 | Name | IfcLabel | ? | A name used to identify or qualify the relationship. |  | X
2 | Description | IfcText | ? | A description that may apply additional information about the relationship. |  | X

##### Formal representations

XML Specification
`<xs:element name="IfcResourceLevelRelationship" type="ifc:IfcResourceLevelRelationship" abstract="true" substitutionGroup="ifc:Entity" nillable="true"/>
<xs:complexType name="IfcResourceLevelRelationship" abstract="true">
<xs:complexContent>
<xs:extension base="ifc:Entity">
<xs:attribute name="Name" type="ifc:IfcLabel" use="optional"/>
<xs:attribute name="Description" type="ifc:IfcText" use="optional"/>
</xs:extension>
</xs:complexContent>
</xs:complexType>
`
EXPRESS Specification
`ENTITY IfcResourceLevelRelationship
ABSTRACT SUPERTYPE OF(ONEOF(IfcApprovalRelationship, IfcCurrencyRelationship, IfcDocumentInformationRelationship, IfcExternalReferenceRelationship, IfcMaterialRelationship, IfcOrganizationRelationship, IfcPropertyDependencyRelationship, IfcResourceApprovalRelationship, IfcResourceConstraintRelationship));
Name : OPTIONAL IfcLabel;
Description : OPTIONAL IfcText;
END_ENTITY;

EXPRESS-G diagram

`

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