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Application module: File identification ISO/TS 10303-1127:2004(E)
© ISO

Cover page
Table of contents
Copyright
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviations

4 Information requirements
   4.1 Required AM ARM
   4.2 ARM type definition
   4.3 ARM entity definitions
5 Module interpreted model
   5.1 Mapping specification
   5.2 MIM EXPRESS short listing
     5.2.1 MIM type definitions
     5.2.2 MIM entity definition

A MIM short names
B Information object registration
C ARM EXPRESS-G   EXPRESS-G
D MIM EXPRESS-G   EXPRESS-G
E Computer interpretable listings
Bibliography
Index

4 Information requirements

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.

The following EXPRESS specification begins the File_identification_arm schema and identifies the necessary external references.

EXPRESS specification:

*)
SCHEMA File_identification_arm;
(*

4.1 Required AM ARM

The following EXPRESS interface statement specifies the elements imported from the ARM of another application module.

EXPRESS specification:

*)
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:

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.

4.2 ARM type definition

This subclause specifies the ARM type for this application module. The ARM type and definition is specified below.

4.2.1 located_select   EXPRESS-G

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;
(*

4.3 ARM entity definitions

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.

4.3.1 Digital_file   EXPRESS-GMapping table

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;
(*

4.3.2 File   EXPRESS-GMapping table

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 STRING;
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 string that provides information about the kind of data stored in the file. The value of this attribute need not be specified.

Where applicable, the following values shall be used:

4.3.3 Hardcopy   EXPRESS-GMapping table

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;
(*

4.3.4 File_location_identification   EXPRESS-GMapping table

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:

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.



*)
END_SCHEMA;  -- File_identification_arm
(*


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