4.2.4 Document Association

The concept Document Association describes how objects or object types can have associated documents indicating external files. Documents may be referenced in their entirety such as to capture product brochures, data sheets, multimedia content, or thumbnail images. Contents within documents may be referenced from any object, and may be used to synchronize information in other files such as work schedules for project management applications.

Typical document meta data, such as issue date, editor, and similar, can be captured with the association, the document content however remains with the external files.

Figure 12 illustrates an instance diagram.

Document AssociationIfcObjectDefinitionIfcRelAssociatesDocumentIfcLabelIfcDocumentReferenceIfcURIReferenceIfcIdentifierIfcLabelIfcText

Figure 12 — Document Association

mvdXML Specification
<?xml version="1.0"?>
<ConceptTemplate xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" uuid="7dadae9c-0026-44d3-ade7-9a843fe2ef0b" name="Document Association" applicableSchema="IFC4" applicableEntity="IfcObjectDefinition">
  <Rules>
    <AttributeRule AttributeName="HasAssociations">
      <EntityRules>
        <EntityRule EntityName="IfcRelAssociatesDocument">
          <AttributeRules>
            <AttributeRule RuleID="Name" AttributeName="Name">
              <EntityRules>
                <EntityRule EntityName="IfcLabel" />
              </EntityRules>
            </AttributeRule>
            <AttributeRule AttributeName="RelatingDocument">
              <EntityRules>
                <EntityRule EntityName="IfcDocumentReference">
                  <AttributeRules>
                    <AttributeRule AttributeName="Location">
                      <EntityRules>
                        <EntityRule EntityName="IfcURIReference" />
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule AttributeName="Identification">
                      <EntityRules>
                        <EntityRule EntityName="IfcIdentifier" />
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule AttributeName="Name">
                      <EntityRules>
                        <EntityRule EntityName="IfcLabel" />
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule AttributeName="Description">
                      <EntityRules>
                        <EntityRule EntityName="IfcText" />
                      </EntityRules>
                    </AttributeRule>
                  </AttributeRules>
                </EntityRule>
              </EntityRules>
            </AttributeRule>
          </AttributeRules>
        </EntityRule>
      </EntityRules>
    </AttributeRule>
  </Rules>
</ConceptTemplate>

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