Extensible select and enumeration types

and their elements in schema Document_management_arm taking into account BASED_ON types


 approval_item - EXTENSIBLE GENERIC_ENTITY SELECT
          Certification
          Contract
          Digital_document_definition
          Document_definition_relationship
          Document_version
          Physical_document_definition

 certification_item - EXTENSIBLE GENERIC_ENTITY SELECT

 contract_item - EXTENSIBLE SELECT
          Document_version

 date_or_date_time_item - EXTENSIBLE SELECT
          Certification
          Contract
          Digital_document_definition
          Digital_file
          Document_definition_relationship
          Document_version
          Hardcopy
          Organization_or_person_in_organization_assignment
          Physical_document_definition
          Security_classification_assignment

 documented_element_select - EXTENSIBLE SELECT

 event_item - EXTENSIBLE GENERIC_ENTITY SELECT

 external_identification_item - EXTENSIBLE GENERIC_ENTITY SELECT
          Document_definition
          File

 identification_item - EXTENSIBLE SELECT
          Approval_status
          Contract
          Digital_document_definition
          Digital_file
          Document
          Document_version
          Hardcopy
          Organization
          Physical_document_definition
          Security_classification

 measure_value - EXTENSIBLE SELECT
          any_number_value
          any_string_value
          length_measure
          plane_angle_measure

 organization_or_person_in_organization_item - EXTENSIBLE SELECT
          Contract
          Digital_document_definition
          Digital_file
          Document
          Document_version
          Hardcopy
          Identification_assignment
          Physical_document_definition
          Security_classification_assignment

 project_item - EXTENSIBLE SELECT

 property_assignment_select - EXTENSIBLE SELECT
          Document_definition
          File

 represented_definition - EXTENSIBLE SELECT
          Assigned_property
          Independent_property

 security_classification_item - EXTENSIBLE SELECT
          Digital_document_definition
          Digital_file
          Document
          Document_version
          Hardcopy
          Physical_document_definition

 string_select - EXTENSIBLE GENERIC_ENTITY SELECT
          Approval
          Approval_relationship
          Approval_status
          Certification
          Contract
          Date_or_date_time_assignment
          Digital_document_definition
          Document
          Document_assignment
          Document_definition_relationship
          Document_version
          External_item_identification
          External_source_identification
          File_relationship
          Identification_assignment
          Organization_relationship
          Person_in_organization
          Physical_document_definition
          Product_category
          Project
          Project_assignment
          Project_relationship