Application module: External item identification assignment ISO/TS 10303-1128:2004(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 ARM type definition
   4.2 ARM entity definitions
5 Module interpreted model
   5.1 Mapping specification
   5.2 MIM EXPRESS short listing
     5.2.1 MIM type definition
     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 External item identification assignment 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 External item identification assignment schema.

EXPRESS specification:

*)
SCHEMA External_item_identification_assignment_arm;
(*

4.1 ARM type definition

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

4.1.1 external_identification_item   EXPRESS-G

The external_identification_item type is an extensible list of alternate data types. Additional alternate data types are specified in select data types that extend the external_identification_item type.

NOTE   This empty extensible select requires extension in a further module to ensure that entities that refer to it have at least one valid instantiation.

EXPRESS specification:

*)
TYPE external_identification_item = EXTENSIBLE GENERIC_ENTITY SELECT;
END_TYPE;
(*

4.2 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.

4.2.1 External_item_identification   EXPRESS-GMapping table

An External_item_identification is a type of External_source_identification that provides the identifier of an item in the context of an external source where it can be found.

EXPRESS specification:

*)
ENTITY External_item_identification
  SUBTYPE OF (External_source_identification);
  external_id : STRING;
END_ENTITY;
(*

Attribute definitions:

external_id: the identifier of the external item, in its external context.

EXAMPLE 1   For a digital file, the file name of a file in the directory where it is located is an example of external_id.

EXAMPLE 2   For a book, the external_id could be the ISBN number.

4.2.2 External_source_identification   EXPRESS-GMapping table

An External_source_identification is the identification of the source where an item, or the components of an item, can be found.

EXPRESS specification:

*)
ENTITY External_source_identification;
  source_id : STRING;
  source_type : STRING;
  item : external_identification_item;
  description : OPTIONAL STRING;
END_ENTITY;
(*

Attribute definitions:

source_id: the text that identifies the context in which the external_id is specified.

EXAMPLE 1   For a digital file identified by a filename and directory path, the source_id is the directory path.

source_type: the text that identifies the identification scheme of the source_id.

EXAMPLE 2   In the case of files, examples of source_type are:

item: the external_identification_item whose source is identified.

description: the text that provides further information about the external identification. The value of this attribute need not be specified.



*)
END_SCHEMA;  -- External_item_identification_assignment_arm
(*


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