Application module: Property identification ISO/TS 10303-1085:2005(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 Required AM ARMs
   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 Property identification 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 Property_identification_arm schema and identifies the necessary external references.

EXPRESS specification:

*)
SCHEMA Property_identification_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 Independent_property_definition_arm;    --  ISO/TS 10303-1099

USE FROM Maths_space_arm;    --  ISO/TS 10303-1091

USE FROM Maths_value_arm;    --  ISO/TS 10303-1092

USE FROM Property_space_arm;    --  ISO/TS 10303-1080
(*

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

Independent_property_definition_arm ISO/TS 10303-1099
Maths_space_arm ISO/TS 10303-1091
Maths_value_arm ISO/TS 10303-1092
Property_space_arm ISO/TS 10303-1080

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

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 Identification_of_property   EXPRESS-GMapping table

An Identification_of_property is a relationship between a Physical_quantity_instance and a maths_value that identifies the Physical_quantity_instance.

The Scale for the identification is specified by a Scale_for_identification_of_property.

NOTE    The entity type Identification_of_property defined in this part of ISO 10303 is identical to the entity type property_quantification defined in ISO 15926-2.

EXAMPLE    The relationship between:

that indicates the temperature instance is identified by the maths value, is an Identification_of_property.

EXPRESS specification:

*)
ENTITY Identification_of_property;
  identifier : maths_value;
  property : Physical_quantity_instance;
END_ENTITY;
(*

Attribute definitions:

identifier: a maths_value that identifies the property.

property: the Physical_quantity_instance that is identified.

4.2.2 Scale   EXPRESS-GMapping table

A Scale is a 1-1 mapping from a Physical_quantity_space to a Maths_space that is used to identify instances of Physical_quantity_instance.

A Scale specifies the unit of measure, the coordinate system, and any encoding method that is used to identify members of the Physical_quantity_space.

NOTE 1   The entity type Scale defined in this part of ISO 10303 is identical to the entity type scale defined in ISO 15926-2.

NOTE 2   The entity type Scale defined in this part of ISO 10303 is interpreted on to the entity type maths_space_context defined in ISO 10303-51. The details of the units of measure and coordinate system are provided by this interpretation.

EXAMPLE    The relationship between:

that indicates each temperature instance within the Physical_quantity_space is uniquely identified by a real value within the Maths_space, and that is called 'Celsius', is a Scale.

EXPRESS specification:

*)
ENTITY Scale;
  identifier : Maths_space;
  property : Physical_quantity_space;
END_ENTITY;
(*

Attribute definitions:

identifier: the Maths_space that has the property mapped to it.

property: the Physical_quantity_space that is mapped to the identifier.

4.2.3 Scale_for_identification_of_property   EXPRESS-GMapping table

A Scale_for_identification_of_property is relationship between an Identification_of_property and a Scale that indicates the Scale is used to interpret the Identification_of_property.

NOTE    The entity type Scale_for_identification_of_property defined in this part of ISO 10303 is identical to a classification relationship in ISO 15926-2 between the entity types property_quantification and scale.

EXAMPLE    The relationship between:

that indicates the number 20 identifies the property with respect to the scale, is a Scale_for_identification_of_property.

EXPRESS specification:

*)
ENTITY Scale_for_identification_of_property;
  identification : Identification_of_property;
  scale : Scale;
END_ENTITY;
(*

Attribute definitions:

identification: the Identification_of_property and a Identification_of_property that is interpreted with respect to the scale.

scale: the Scale that defines the interpretation of the identification.



*)
END_SCHEMA;  -- Property_identification_arm
(*


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