AP scope  |  AP module  |  AP contents  |  AP index
Application module: Description assignment ISO/WD 10303-1473

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

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 Description 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 Description assignment schema.

EXPRESS specification:

*)
SCHEMA Description_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 description_item   EXPRESS-G

The description_item type is an extensible list of alternate data types. Additional alternate data types are specified in select data types that extend the description_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 description_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 Description_text   EXPRESS-GMapping table

A Description_text is a set of words that describe something.

EXPRESS specification:

*)
ENTITY Description_text;
  description : STRING;
END_ENTITY;
(*

Attribute definitions:

description: the text that constitutes the description

4.2.2 Description_text_assignment   EXPRESS-GMapping table

A Description_text_assignment is the assignment of a description to something.

EXPRESS specification:

*)
ENTITY Description_text_assignment;
  description : Description_text;
  items : SET[1:?] OF description_item;
END_ENTITY;
(*

Attribute definitions:

description: the text that constitutes the description

items: the set of items being described



*)
END_SCHEMA;  -- Description_assignment_arm
(*


© ISO 2006 — All rights reserved