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Application module:
Document properties |
ISO/TS 10303-1126:2019(E)
© ISO
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This clause specifies the information requirements for the
Document properties
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.
This clause defines the information requirements to which implementations shall
conform using the EXPRESS language as defined in ISO 10303-11.
The following begins the
Document_properties_arm
schema and identifies the necessary external references.
EXPRESS specification:
*)
SCHEMA Document_properties_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
USE FROM
Foundation_representation_arm;
--
ISO/TS 10303-1006
USE FROM
Measure_representation_arm;
--
ISO/TS 10303-1118
USE FROM
Property_assignment_arm;
--
ISO/TS 10303-1030
(*
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 |
| Foundation_representation_arm |
ISO/TS 10303-1006 |
| Measure_representation_arm |
ISO/TS 10303-1118 |
| Property_assignment_arm |
ISO/TS 10303-1030 |
NOTE 2
See Annex C,
Figures
C.1and C.2
for a graphical representation of this schema.
This subclause specifies the ARM types
for this application module. The ARM types and
definitions are specified below.
The descriptive_or_numerical type allows for the designation of the data
types
Descriptive_document_property and Numerical_document_property.
EXPRESS specification:
*)
TYPE
descriptive_or_numerical =
SELECT
(Descriptive_document_property,
Numerical_document_property);
END_TYPE;
(*
The document_property_item type is an extension
of the
property_assignment_select type.
It adds the data
types
Document_definition and File
to the list of alternate data types.
NOTE
That extension involves that a Document_definition or a File can be assigned any kind of property.
The purpose of the entity data types defined in the present module is to specify the properties and their representation that
are specific to documents and to files.
EXPRESS specification:
*)
TYPE
document_property_item =
SELECT
BASED_ON
property_assignment_select
WITH
(Document_definition,
File);
END_TYPE;
(*
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.
An Assigned_document_property is a type of Assigned_property that identifies a property assigned to a document definition or to a file.
When the Assigned_document_property is applied to a
Digital_document_definition
through the described_element attribute, the
Assigned_document_property applies to all instances of
Digital_file
that are components of the
Digital_document_definition.
When the Assigned_document_property is applied to a
Physical_document_definition
through the described_element attribute, the
Assigned_document_property applies to all instances of
Hardcopy
that are components of the
Physical_document_definition.
When the Assigned_document_property is applied to a
File
through the described_element attribute, the
Assigned_document_property applies to the individual
File.
EXPRESS specification:
*)
ENTITY Assigned_document_property
SUBTYPE OF (Assigned_property);
SELF\assigned_property.described_element : document_property_item;
DERIVE
SELF\assigned_property.name : STRING := 'document property';
WHERE
WR1: SIZEOF(['DOCUMENT_PROPERTIES_ARM.DOCUMENT_DEFINITION','DOCUMENT_PROPERTIES_ARM.FILE'] * TYPEOF(SELF\Assigned_property.described_element))
= 1;
END_ENTITY;
(*
Attribute definitions:
described_element:
the element to which the property is assigned.
name:
the words by which the Assigned_document_property is known. The inherited name of the property is constrained to be 'document property'
Formal propositions:
WR1:
The Assigned_document_property shall be assigned to a Document_definition or to a File.
A Descriptive_document_property is a type of String_representation_item that specifies a text based
characteristics of a
Document_definition
or of a
File.
EXPRESS specification:
*)
ENTITY Descriptive_document_property
SUBTYPE OF (String_representation_item);
INVERSE
valued_characteristic : SET[1:1] OF document_property_representation FOR items;
END_ENTITY;
(*
Attribute definitions:
valued_characteristic:
the Document_property_representation that contains the Descriptive_document_property.
A Document_property_representation is a type of Representation that conveys the parameters of a particular aspect of an Assigned_document_property.
Where applicable, the following values shall be used for the inherited name attribute of the Document_property_representation:
-
'document content': a category of parameters that describe the precise characteristics of the data contained in a document
definition or in a file;
-
'document creation': a category of parameters that detail the context of creation of a document definition or file;
-
'document format': a category of parameters that describe the format of a document definition or of a file;
-
'document size': a category of parameters that detail the size of a document definition or of a file.
The following characteristics may be items of a Document_property_representation with name 'document content':
-
A Descriptive_document_property with name 'detail level' specifying the level of detail that is provided;
EXAMPLE 1
An example value for the 'detail level' property is 'rough 3d shape' - a 3D shape model without edge rounds and fillets.
-
A Descriptive_document_property with name 'geometry type' specifying the kind or kinds of geometry that is contained;
EXAMPLE 2
examples of geometry type are:
'3D wireframe model', '2D shape', 'surface model', 'closed volume', 'solid model', 'solid and surface model',
'2D drawing'.
-
A Descriptive_document_property with name 'real world scale' specifying a text representation of the scale used.
-
A Numerical_document_property with name 'real world scale' specifying a numerical representation of the scale used.
The following characteristics shall be an item of a Document_property_representation with name 'document creation':
-
A Descriptive_document_property with name 'creating system' specifying the name of the computer application or the machine that was used to generate the
document definition or the file.
The following characteristics may be items of a Document_property_representation with name 'document creation':
The following characteristics may be items of a Document_property_representation with name 'document format':
The following characteristics may be items of a Document_property_representation with name 'document size':
EXPRESS specification:
*)
ENTITY Document_property_representation
SUBTYPE OF (Representation);
SELF\representation.items : SET[1:?] OF descriptive_or_numerical;
WHERE
WR1: SIZEOF(QUERY(pr <* USEDIN(SELF, 'PROPERTY_ASSIGNMENT_ARM.PROPERTY_DEFINITION_REPRESENTATION.USED_REPRESENTATION')
| 'DOCUMENT_PROPERTIES_ARM.ASSIGNED_PROPERTY' IN TYPEOF(pr\Property_representation.property))) > 0;
WR2: SELF\Representation.context_of_items.kind = 'document parameters';
WR3: SIZEOF(QUERY(it1 <* SELF\Representation.items | (it1.name <> 'geometry type') AND
(SIZEOF(QUERY(it2 <* SELF\Representation.items | it1.name = it2.name)) > 1))) = 0;
END_ENTITY;
(*
Attribute definitions:
items:
the set of things of the Document_property_representation shall be of type Descriptive_document_property or Numerical_document_property.
Formal propositions:
WR1:
There shall be at least one
Property_representation
that references
Document_property_representation
as
Property_representation.used_representation
and has
Assigned_property
in role of
Property_representation.property.
WR2:
the context of the Document_property_representation shall be of kind 'document parameters'.
WR3:
there shall not be two items of the Document_property_representation with the same name, unless the name is 'geometry type'.
A Numerical_document_property is a type of Numerical_item_with_unit that specifies a numerical characteristic of a
Document_definition
or of a
File.
EXAMPLE
The size of a digital file expressed in Megabytes is an example of Numerical_document_property.
EXPRESS specification:
*)
ENTITY Numerical_document_property
SUBTYPE OF (Numerical_item_with_unit);
INVERSE
valued_characteristic : SET[1:1] OF document_property_representation FOR items;
END_ENTITY;
(*
Attribute definitions:
valued_characteristic:
the Document_property_representation that contains the Numerical_document_property.
*)
END_SCHEMA; -- Document_properties_arm
(*
© ISO 2019 — All rights reserved
