<xs:complexType name="IfcClassificationType">
<xs:sequence>
<xs:element name="source" minOccurs="0" type="xs:string"/>
<xs:element name="edition" minOccurs="0" type="xs:string"/>
<xs:element name="editionDate" minOccurs="0" type="xs:date"/>
<xs:element name="name" minOccurs="0" type="xs:string"/>
</xs:sequence>
</xs:complexType>