|
|
Application module:
File identification |
ISO/TS 10303-1127:2019(E)
© ISO
|
This clause specifies the information requirements for the
File identification
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
File_identification_arm
schema and identifies the necessary external references.
EXPRESS specification:
*)
SCHEMA File_identification_arm;
(*
The following EXPRESS interface statements specify the elements
imported from the ARMs of other application modules.
EXPRESS specification:
*)
USE FROM
Activity_arm;
--
ISO/TS 10303-1047
USE FROM
External_item_identification_assignment_arm;
--
ISO/TS 10303-1128
(*
NOTE 1
The schemas referenced above are specified in the following
part of ISO 10303:
| Activity_arm |
ISO/TS 10303-1047 |
| External_item_identification_assignment_arm |
ISO/TS 10303-1128 |
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 fi_activity_item type is an extension
of the
activity_item type.
It adds the data
type
Document_type
to the list of alternate data types.
EXPRESS specification:
*)
TYPE
fi_activity_item =
SELECT
BASED_ON
activity_item
WITH
(Document_type);
END_TYPE;
(*
The located_select type is an extension
of the
external_identification_item type.
It adds the data
type
File
to the list of alternate data types.
EXPRESS specification:
*)
TYPE
located_select =
SELECT
BASED_ON
external_identification_item
WITH
(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.
A Digital_file is a type of
File.
A Digital_file contains computer interpretable data and is stored on an electronic device.
EXPRESS specification:
*)
ENTITY Digital_file
SUBTYPE OF (File);
END_ENTITY;
(*
A Document_type is the kind of data that are contained in the File.
EXPRESS specification:
*)
ENTITY Document_type;
product_data_type : STRING;
END_ENTITY;
(*
Attribute definitions:
product_data_type:
a string that provides information about the kind of data.
Where applicable, the following values shall be used:
- 'geometry': The file contains a shape model;
- 'NC data': The file contains numerical control data;
- 'FE data': The file contains finite element data;
- 'sample data': The file represents measured data;
- 'process plan': The document file represents process planning data;
- 'check plan': The document file represents quality control planning data;
- 'drawing': The document file represents a technical drawing.
A File is a file stored on a computer system or in
a stack of non-digital documents.
A File is either a
Hardcopy
or a
Digital_file.
EXPRESS specification:
*)
ENTITY File
ABSTRACT SUPERTYPE
OF (ONEOF (Digital_file,
Hardcopy));
id : STRING;
version :
OPTIONAL
STRING;
contained_data_type :
OPTIONAL
Document_type;
END_ENTITY;
(*
Attribute definitions:
id:
the identifier for the File.
EXAMPLE
This attribute may be used to convey the identification of a digital file in the directory where it is stored.
version:
a string that provides a version identifier for the file. The value of this attribute need not be specified.
contained_data_type:
a Document_type that provides information about the kind of data stored in the file. The value of this attribute need not be specified.
A File_location_identification is a type of External_item_identification
that identifies the location of
a File
in an external storage system where it can be found.
EXAMPLE 1
For a computer file identified by a filename and directory path, for
example 'D:\project1\specification.txt', the
external_id
attribute represents the filename,
'specification.txt' and the source_id
attribute represents the path
name, 'D:\project1\'.
EXAMPLE 2
Examples of source_type
are:
- 'URL' - for a web page;
- 'FTP' - for an FTP address;
- 'ISBN' - for physical documents.
EXPRESS specification:
*)
ENTITY File_location_identification
SUBTYPE OF (External_item_identification);
WHERE
WR1: 'FILE_IDENTIFICATION_ARM.FILE' IN TYPEOF(SELF\External_source_identification.item);
END_ENTITY;
(*
Formal propositions:
WR1:
The identified external item shall be of type File.
A Hardcopy is a type of File that represents a non-digital document.
EXAMPLE
An actual stack of paper
consisting of one or more sheets, on which some product data is written,
printed or plotted.
EXPRESS specification:
*)
ENTITY Hardcopy
SUBTYPE OF (File);
END_ENTITY;
(*
*)
END_SCHEMA; -- File_identification_arm
(*
© ISO 2019 — All rights reserved
