ISO 10303-214:2010(E)
A Document_file_relationship is a relationship between two Document_file objects. It specifies that the related Document_file is referenced from the relating Document_file.
EXAMPLE A service manual may contain graphics for explanatory reasons. In this case the Document_file objects that contain the graphics are referenced as related from the Document_file object that contains the body of the service manual with relation_type 'reference'.
The data associated with a Document_file_relationship are the following:
The description specifies additional information about the Document_file_relationship.
See document_file_relationship to multi_language_string for the application assertion.
The description need not be specified for a particular Document_file_relationship.
If present, there shall be exactly one object that defines the description for a Document_file_relationship.
The related specifies the second of the two objects related by the Document_file_relationship.
NOTE The semantics of this attribute are defined by the attribute relation_type.
See document_file_relationship to document_file for the application assertion.
The relating specifies the first of the two objects related by the Document_file_relationship.
NOTE The semantics of this attribute are defined by the attribute relation_type.
See document_file_relationship to document_file for the application assertion.
The relation_type specifies the meaning of the relationship. The values 'addition', 'decomposition', and 'peer' are only allowed if neither the relating nor the related Document_file are included in a Document_representation.
Where applicable the following values shall be used:
EXAMPLE The recommended practices for this part of ISO 10303 may be an addition.
EXAMPLE The decomposition of a document into clauses or into several CAD models is an example for 'decomposition'.
EXAMPLE The derivation of a hypertext document from an text document is an example for 'derivation'.
EXAMPLE The link in a hypertext document may be a reference.
EXAMPLE A sequence of clauses is an example for 'sequence'.
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