Extensible select and enumeration types

and their elements in schema PICTURE_REPRESENTATION_MIM taking into account BASED_ON types


 characterized_product_definition - EXTENSIBLE SELECT
          product_definition
          product_definition_relationship

 external_identification_item - EXTENSIBLE GENERIC_ENTITY SELECT
          document_file
          externally_defined_picture_representation_item

 identification_item - EXTENSIBLE GENERIC_ENTITY SELECT
          document_file
          representation
          shape_representation

 invisible_item - EXTENSIBLE GENERIC_ENTITY SELECT
          presentation_layer_assignment
          representation
          styled_item

 item_identified_representation_usage_definition - EXTENSIBLE GENERIC_ENTITY SELECT
          represented_definition

 presented_item_select - EXTENSIBLE GENERIC_ENTITY SELECT

 shape_model - EXTENSIBLE GENERIC_ENTITY SELECT
          shape_representation