5.2 MIM EXPRESS short listing

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:

• use of a supertype entity does not make applicable any of its specializations, unless the specialization is also imported in the MIM schema;
• use of a SELECT type does not make applicable any of its listed types unless the listed type is also imported in the MIM schema.

Short names of entities defined in this schema are described in Annex A. Unambiguous identification of this schema is defined in Annex B.

USE FROM Activity_mim;    --  ISO/TS 10303-1047



USE FROM Derived_shape_element_mim;    --  ISO/TS 10303-1130



USE FROM Document_assignment_mim;    --  ISO/TS 10303-1122



USE FROM Extended_measure_representation_mim;    --  ISO/TS 10303-1106



USE FROM external_reference_schema    --  ISO 10303-41
  (external_source,
   externally_defined_item);



USE FROM geometry_schema    --  ISO 10303-42
  (placement);



USE FROM Identification_assignment_mim;    --  ISO/TS 10303-1021



USE FROM shape_aspect_definition_schema    --  ISO 10303-47
  (shape_aspect_deriving_relationship,
   dimensional_location_with_datum_feature,
   dimensional_size_with_datum_feature);



USE FROM shape_dimension_schema;    --  ISO 10303-47



USE FROM shape_tolerance_schema    --  ISO 10303-47
  (limits_and_fits,
   plus_minus_tolerance,
   tolerance_method_definition,
   tolerance_value);



USE FROM Value_with_unit_extension_mim;    --  ISO/TS 10303-1753
(*



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

Activity_mim	ISO/TS 10303-1047
Derived_shape_element_mim	ISO/TS 10303-1130
Document_assignment_mim	ISO/TS 10303-1122
Extended_measure_representation_mim	ISO/TS 10303-1106
external_reference_schema	ISO 10303-41
geometry_schema	ISO 10303-42
Identification_assignment_mim	ISO/TS 10303-1021
shape_aspect_definition_schema	ISO 10303-47
shape_dimension_schema	ISO 10303-47
shape_tolerance_schema	ISO 10303-47
Value_with_unit_extension_mim	ISO/TS 10303-1753

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

5.2.1 MIM type definitions

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

5.2.1.1 dimension_identification_item   

The dimension_identification_item type is an extension of the identification_item type. It adds the data type dimensional_size to the list of alternate data types.

EXPRESS specification:

*)
TYPE dimension_identification_item = SELECT BASED_ON identification_item WITH
   (dimensional_size);
END_TYPE;
(*

5.2.1.2 dimension_tolerance_document_reference_item   

The dimension_tolerance_document_reference_item type is an extension of the document_reference_item type. It adds the data types dimensional_size and externally_defined_dimension_definition to the list of alternate data types.

EXPRESS specification:

*)
TYPE dimension_tolerance_document_reference_item = SELECT BASED_ON document_reference_item WITH
   (dimensional_size,
    externally_defined_dimension_definition);
END_TYPE;
(*

5.2.1.3 dt_action_items   

The dt_action_items type is an extension of the action_items type. It adds the data types dimensional_location, dimensional_size, and directed_dimensional_location to the list of alternate data types.

EXPRESS specification:

*)
TYPE dt_action_items = SELECT BASED_ON action_items WITH
   (dimensional_location,
    dimensional_size,
    directed_dimensional_location);
END_TYPE;
(*

5.2.2 MIM entity definition

This subclause specifies the MIM entity for this module. The MIM entity and definition is specified below.

5.2.2.1 externally_defined_dimension_definition   

EXPRESS specification:

*)
ENTITY externally_defined_dimension_definition
  SUBTYPE OF (dimensional_size, externally_defined_item);
WHERE
  WR1: (SELF\externally_defined_item.item_id = 'external size dimension') AND (SELF\externally_defined_item.source.source_id = 'external size dimension specification');
  WR2: 1 >= SIZEOF(QUERY ( adr <* USEDIN(SELF, 'DOCUMENT_ASSIGNMENT_MIM.APPLIED_DOCUMENT_REFERENCE.ITEMS')| (adr.assigned_document.description = 'external size dimension specification') ));
END_ENTITY;
(*

Formal propositions:

WR1: The item_id shall be 'external size dimension' and the source attribute shall reference an external_source with a source_id of 'externally defined dimension specification'.

WR2: The externally_defined_dimension_definition shall be referenced by the items attribute of type applied_document_reference that references through the assigned_document attribute a document with description of 'externally defined dimension specification'.

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