AP scope | AP module | AP contents | AP index | |
Application module: External class | ISO/TS 10303-1275:2004(E) © ISO |
This clause specifies the information requirements for the External class 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_class_arm schema and identifies the necessary external references.
EXPRESS specification:
*)
SCHEMA External_class_arm;
(*
The following EXPRESS interface statements specify the elements imported from the ARMs of other application modules.
EXPRESS specification:
*)
USE FROM
Class_arm;
--
ISO/TS 10303-1070
USE FROM
Name_assignment_arm;
--
ISO/TS 10303-1340
(*
NOTE 1 The schemas referenced above are specified in the following part of ISO 10303:
Class_arm ISO/TS 10303-1070 Name_assignment_arm ISO/TS 10303-1340
NOTE 2 See Annex C, Figures C.1and C.2 for a graphical representation of this schema.
This subclause specifies the ARM type for this application module. The ARM type and definition is specified below.
The external_class_assigned_name_select type is an extension of the assigned_name_select type. It adds the data type External_class_library to the list of alternate data types.
EXPRESS specification:
*)
TYPE
external_class_assigned_name_select =
SELECT
BASED_ON
assigned_name_select
WITH
(External_class_library);
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.
EXPRESS specification:
*)
ENTITY External_class
SUBTYPE OF (Class);
external_source : External_class_library;
END_ENTITY;
(*
Attribute definitions:
external_source: the identification of the external class library that provides the definition for the class.
EXPRESS specification:
*)
ENTITY External_class_library;
id : STRING;
description :
OPTIONAL
STRING;
END_ENTITY;
(*
Attribute definitions:
id: an identifier for the external class library.
NOTE If appropriate this should be the URL of the external class library.
description: the text that provides further information about the External_class_library. The value of the attribute need not be specified.
*)
END_SCHEMA; -- External_class_arm
(*
© ISO 2004 — All rights reserved