Application module: Characterized representation ISO/TS 10303-1805:2014-02(E)
© ISO

Cover page
Table of contents
Copyright
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
    3.1 Terms and definitions
    3.2 Abbreviated terms

4 Information requirements
   4.1 Required AM ARMs
   4.2 ARM type definitions
   4.3 ARM entity definitions
5 Module interpreted model
   5.1 Mapping specification
   5.2 MIM EXPRESS short listing
     5.2.1 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 Characterized representation 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 Characterized_representation_arm schema and identifies the necessary external references.

EXPRESS specification:

*)
SCHEMA Characterized_representation_arm;
(*

4.1 Required AM ARMs

The following EXPRESS interface statements specify the elements imported from the ARMs of other application modules.

EXPRESS specification:

*)
USE FROM Characterizable_object_arm;    --  ISO/TS 10303-1765

USE FROM Elemental_geometric_shape_arm;    --  ISO/TS 10303-1004

USE FROM Foundation_representation_arm;    --  ISO/TS 10303-1006

USE FROM Property_assignment_arm;    --  ISO/TS 10303-1030

REFERENCE FROM Foundation_representation_arm    --  ISO/TS 10303-1006
  (using_representations);
(*

NOTE 1   The schemas referenced above are specified in the following part of ISO 10303:

Characterizable_object_arm ISO/TS 10303-1765
Elemental_geometric_shape_arm ISO/TS 10303-1004
Foundation_representation_arm ISO/TS 10303-1006
Property_assignment_arm ISO/TS 10303-1030
Foundation_representation_arm ISO/TS 10303-1006

NOTE 2   See Annex C, Figures C.1and C.2 for a graphical representation of this schema.

4.2 ARM type definitions

This subclause specifies the ARM types for this application module. The ARM types and definitions are specified below.

4.2.1 chained_representation_link   EXPRESS-G

The chained_representation_link type is an extensible list of alternate data types that allows for the designation of the data types Geometric_placement_operation, Representation_context and Representation_relationship.

NOTE   The list of entity data types may be extended in application modules that use the constructs of this module.

EXPRESS specification:

*)
TYPE chained_representation_link = EXTENSIBLE GENERIC_ENTITY SELECT
   (Geometric_placement_operation,
    Representation_context,
    Representation_relationship);
END_TYPE;
(*

4.2.2 cr_property_assignment_select   EXPRESS-G

The cr_property_assignment_select type is an extension of the property_assignment_select type. It adds the data types Characterized_representation and Characterized_item_within_representation to the list of alternate data types.

EXPRESS specification:

*)
TYPE cr_property_assignment_select = SELECT BASED_ON property_assignment_select WITH
   (Characterized_representation,
    Characterized_item_within_representation);
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 Characterized_chain_based_item_within_representation   EXPRESS-GMapping table

A Characterized_chain_based_item_within_representation is a type of Characterized_item_within_representation for the characterization of a Representation_item through a directed graph of Representation, where the undirected links in the graph can be instances of entity data types Representation_context, Representation_relationship, or Geometric_placement_operation.

EXPRESS specification:

*)
ENTITY Characterized_chain_based_item_within_representation
  SUBTYPE OF (Characterized_item_within_representation);
  nodes : LIST[2:?] OF UNIQUE Representation;
  undirected_link : LIST[1:?] OF UNIQUE chained_representation_link;
END_ENTITY;
(*

Attribute definitions:

nodes: the ordered list of Representation, in the chain.

undirected_link: the list of items that relate nodes in the chain.

4.3.2 Characterized_item_within_representation   EXPRESS-GMapping table

A Characterized_item_within_representation is a type of Characterizable_object for the characterization of a Representation_item that is used within a Representation.

EXPRESS specification:

*)
ENTITY Characterized_item_within_representation
  SUBTYPE OF (Characterizable_object);
  item : Representation_item;
  rep : Representation;
UNIQUE
  UR1: item, rep;
WHERE
  WR1: rep IN using_representations(item);
END_ENTITY;
(*

Attribute definitions:

item: specifies the role of the Representation_item for the Characterized_item_within_representation.

rep: specifies the role of the Representation for the Characterized_item_within_representation.

Formal propositions:

UR1: The combination of item and rep shall be unique within a population of the Characterized_item_within_representation.

WR1: the item shall be used within the Representation indicated by rep.

4.3.3 Characterized_representation   EXPRESS-GMapping table

A Characterized_representation is a type of Characterizable_object and of Representation.

EXPRESS specification:

*)
ENTITY Characterized_representation
  SUBTYPE OF (Representation, Characterizable_object);
END_ENTITY;
(*



*)
END_SCHEMA;  -- Characterized_representation_arm
(*


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