Application module: Signal | ISO/TS 10303-1745:2006(E) © ISO |
This clause specifies the EXPRESS schema derived from the mapping table. It uses elements from the common resources or from other application modules and defines the EXPRESS constructs that are specific to this part of ISO 10303.
This clause constitutes the Module Interpreted Module (MIM) of the application module.
This clause also specifies the modifications that apply to the constructs imported from the common resources.
The following restrictions apply to the use, in this schema, of constructs defined in common resources or in application modules:
*)
SCHEMA Signal_mim;
USE FROM
Characteristic_mim;
--
ISO/TS 10303-1654
USE FROM
product_property_definition_schema
--
ISO 10303-41
(characterized_object,
property_definition);
USE FROM
material_property_definition_schema
--
ISO 10303-45
(property_definition_relationship);
USE FROM
group_schema
--
ISO 10303-41
(group);
USE FROM
document_schema
--
ISO 10303-41
(document_usage_constraint);
(*
NOTE 1 The schemas referenced above are specified in the following part of ISO 10303:
Characteristic_mim ISO/TS 10303-1654 product_property_definition_schema ISO 10303-41 material_property_definition_schema ISO 10303-45 group_schema ISO 10303-41 document_schema ISO 10303-41
NOTE 2 See Annex D, Figures D.1and D.2 for a graphical representation of this schema.
This subclause specifies the MIM type for this application module. The MIM type and definition is specified below.
The s_external_identification_item type is an extension of the external_identification_item type. It adds the data types composite_signal_property_relationship, property_definition and signal to the list of alternate data types.
NOTE The list of entity data types may be extended in application modules that use the constructs of this module.
EXPRESS specification:
*)
TYPE
s_external_identification_item =
EXTENSIBLE
GENERIC_ENTITY
SELECT
BASED_ON
external_identification_item
WITH
(composite_signal_property_relationship,
property_definition,
signal);
END_TYPE;
(*
This subclause specifies the MIM entities for this module. The MIM entities and definitions are specified below.
A composite_signal_property_relationship is a type of property_definition and of property_definition_relationship that implements the ARM concept of Composite_signal_property_relationship
EXPRESS specification:
*)
ENTITY composite_signal_property_relationship
SUBTYPE OF (property_definition, property_definition_relationship);
WHERE
WR1: SELF\property_definition_relationship.related_property_definition.definition :<>:
SELF\property_definition_relationship.relating_property_definition.definition;
END_ENTITY;
(*
Formal propositions:
WR1: The composite_signal_property_relationship shall not relate to the same property_definition definition through the related and relating attributes.
A signal is a type of characterized_object that implements the ARM concept of Signal.
EXPRESS specification:
*)
ENTITY signal
SUBTYPE OF (characterized_object);
END_ENTITY;
(*
A signal_category is a type of group that specifies the External_item_identification for a Signal_property.
EXPRESS specification:
*)
ENTITY signal_category
SUBTYPE OF (group);
END_ENTITY;
(*
*)
END_SCHEMA; -- Signal_mim
(*
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