8.6.2.4 IfcDocumentSelect
8.6.2.4.1 Semantic definition
The IfcDocumentSelect enables selection of whether document information is to be contained within an IFC model or is to be referenced from an external source.
8.6.2.4.2 Type values
8.6.2.4.3 Formal representation
TYPE IfcDocumentSelect = SELECT
(IfcDocumentInformation
,IfcDocumentReference);
END_TYPE;