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Application module:
External class |
ISO/TS 10303-1275:2014-02(E)
© ISO
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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.
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
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
External_source_arm;
--
ISO/TS 10303-1331
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 |
| External_source_arm |
ISO/TS 10303-1331 |
| 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.
An External_class is a type of
Class
that represents a reference to a class that is not included in the data
exchange file and is defined in an external class library.
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.
An External_class_library is a type of
External_source.
An External_class_library is the identification of an external class library.
EXPRESS specification:
*)
ENTITY External_class_library
SUBTYPE OF (External_source);
END_ENTITY;
(*
*)
END_SCHEMA; -- External_class_arm
(*
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