Location | L | Location, where the external source (classification, document or library) can be accessed by electronic means. The electronic location is provided as an URI, and would normally be given as an URL location string. | Text |
Identification | I | The Identification provides a unique identifier of the referenced item within the external source (classification, document or library) | Text |
Name | N | Optional name to further specify the reference. It can provide a human readable identifier (which does not necessarily need to have a counterpart in the internal structure of the document). | Text |
Description | D | Description of the document reference for informational purposes. | Text |
IfcDocumentInformation | I | IfcDocumentInformation not implemented yet! | Generic Data |