IfcMaterialClassificationRelationship

BACnet MVD

#### IfcMaterialClassificationRelationship

Natural language names

| Materialklassifikation - Relation
| Material Classification Relationship
| Assignation de classification à un matériau

Change log

Item | SPF | XML | Change | Description
--- | --- | --- | --- | ---
IFC2x3 to IFC4
IfcMaterialClassificationRelationship |  |  |  |
MaterialClassifications | X | X | MODIFIED | Type changed from IfcClassificationNotationSelect to IfcClassificationSelect.

##### Semantic definitions at the entity

Entity definition

IfcMaterialClassificationRelationship is a relationship assigning classifications to materials.

> HISTORY New entity in IFC2x.

> IFC4 CHANGE The entity IfcMaterialClassificationRelationship is deprecated since IFC4 and shall no longer be used. Use IfcExternalReferenceRelationship instead.

Attribute definitions

# | Attribute | Type | Cardinality | Description | B
--- | --- | --- | --- | --- | ---
1 | MaterialClassifications | IfcClassificationSelect | S[1:?] | The material classifications identifying the type of material. |  | X
2 | ClassifiedMaterial | IfcMaterial |  | Material being classified. |  | X

##### Inherited definitions from supertypes

Entity inheritance
Attribute inheritance

# | Attribute | Type | Cardinality | Description | B
--- | --- | --- | --- | --- | ---
IfcMaterialClassificationRelationship
1 | MaterialClassifications | IfcClassificationSelect | S[1:?] | The material classifications identifying the type of material. |  | X
2 | ClassifiedMaterial | IfcMaterial |  | Material being classified. |  | X

##### Formal representations

XML Specification
`<xs:element name="IfcMaterialClassificationRelationship" type="ifc:IfcMaterialClassificationRelationship" substitutionGroup="ifc:Entity" nillable="true"/>
<xs:complexType name="IfcMaterialClassificationRelationship">
<xs:complexContent>
<xs:extension base="ifc:Entity">
<xs:sequence>
<xs:element name="MaterialClassifications">
<xs:complexType>
<xs:group ref="ifc:IfcClassificationSelect" maxOccurs="unbounded"/>
<xs:attribute ref="ifc:itemType" fixed="ifc:IfcClassificationSelect"/>
<xs:attribute ref="ifc:cType" fixed="set"/>
<xs:attribute ref="ifc:arraySize" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="ClassifiedMaterial" type="ifc:IfcMaterial" nillable="true"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
`
EXPRESS Specification
`ENTITY IfcMaterialClassificationRelationship;
MaterialClassifications : SET [1:?] OF IfcClassificationSelect;
ClassifiedMaterial : IfcMaterial;
END_ENTITY;

EXPRESS-G diagram

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