Application module: Document structure | ISO/TS 10303-1124:2004(E) © ISO |
This clause specifies the information requirements for the Document structure application module. The information requirements are specified as the Application Reference Model (ARM) of this application module.
NOTE 1 A graphical representation of the information requirements is given in Annex C.
NOTE 2 The mapping specification is specified in 5.1. It shows how the information requirements are met by using common resources and constructs defined or imported in the MIM schema of this application module.
The following EXPRESS specification begins the Document_structure_arm schema and identifies the necessary external references.
EXPRESS specification:
*)
SCHEMA Document_structure_arm;
(*
The following EXPRESS interface statements specify the elements imported from the ARMs of other application modules.
EXPRESS specification:
*)
USE FROM
Document_definition_arm;
--
ISO/TS 10303-1123
USE FROM
File_identification_arm;
--
ISO/TS 10303-1127
(*
NOTE 1 The schemas referenced above are specified in the following part of ISO 10303:
Document_definition_arm ISO/TS 10303-1123 File_identification_arm ISO/TS 10303-1127
NOTE 2 See Annex C, Figures C.1and C.2 for a graphical representation of this schema.
This subclause specifies the ARM entities for this module. Each ARM application entity is an atomic element that embodies a unique application concept and contains attributes specifying the data elements of the entity. The ARM entities and definitions are specified below.
EXPRESS specification:
*)
ENTITY Document_definition_relationship;
relation_type : STRING;
description :
OPTIONAL
STRING;
relating_document_definition : Document_definition;
related_document_definition : Document_definition;
WHERE
WR1: relating_document_definition :<>: related_document_definition;
END_ENTITY;
(*
Attribute definitions:
relation_type: the relation_type specifies the meaning of the relationship.
Where applicable the following values shall be used:
EXAMPLE 1 The decomposition of a document into clauses is an example for the use of this value.
EXAMPLE 2 A raster image may be derived from a 3D CAD model.
EXAMPLE 3 A html version may be derived from a text document as an alternative.
EXAMPLE 4 A hyperlink is an example for a 'reference'.
EXAMPLE 5 A sequence of clauses.
description: the text that provides further information about the Document_definition_relationship. The value of this attribute need not be specified.
relating_document_definition: one of the instances of Document_definitionthat participate in the relationship.
related_document_definition: the other instance of Document_definition that participates in the relationship. If one element of the relationship is dependent upon the other, this attribute shall be the dependent one.
Formal propositions:
WR1: A Document_definition shall not be related to itself.
EXAMPLE 1 A service manual may contain graphics for explanatory reasons. In this case, the File objects that contain the graphics are referenced as related from the File object that contains the body of the service manual with relation_type 'reference'.
EXPRESS specification:
*)
ENTITY File_relationship;
relation_type : STRING;
description :
OPTIONAL
STRING;
relating_document_file : File;
related_document_file : File;
WHERE
WR1: relating_document_file:<>: related_document_file;
END_ENTITY;
(*
Attribute definitions:
relation_type: the relation_type is the meaning of the relationship.
Where applicable the following values shall be used:
EXAMPLE 2 The recommended practices for this part of ISO 10303 may be an addition.
EXAMPLE 3 The decomposition of a document into clauses or into several CAD models is an example for 'decomposition'.
EXAMPLE 4 The derivation of a hypertext document from an text document is an example for 'derivation'.
EXAMPLE 5 The link in a hypertext document may be a reference.
EXAMPLE 6 A sequence of clauses is an example for 'sequence'.
The values 'addition', 'decomposition', and 'peer' are used for the purpose of creating logical structures of documents. These values shall only be used for the relation_type of Document_definition, if the referenced File objects do not participate in a Document_definition. In the latter case, Document_definition_relationship shall be used instead.
description: the text that provides further information about the Document_definition. The value of this attribute need not be specified.
relating_document_file: one instance of Filethat participates in the relationship.
related_document_file: the other instance of File that participates in the relationship. If one element of the relationship is dependent upon the other, this attribute shall be the dependent one.
Formal propositions:
WR1: A File shall not be related to itself.
*)
END_SCHEMA; -- Document_structure_arm
(*
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