NIST Standards Ontology

# NIST Standards Ontology — Flow Algebra

URL: https://kirethresearch.org/booksai-core/ontologies/mathematical-ontologies/measurement-units-ontologies/international-standards/nist-standards-ontology.html

FLOW NISTStandardsOntology {

  DOMAIN:
    Mathematical Ontologies
    -> Measurement & Units Ontologies
    -> International Standards
    -> NIST Standards Ontology

  PURPOSE:
    Represent the standards, reference frameworks, measurement services, technical publications, reference materials, calibration resources, data products and metrological practices associated with the United States National Institute of Standards and Technology (NIST). The ontology models NIST's relationship to SI measurement, national measurement standards, calibration, traceability, Standard Reference Materials, Standard Reference Data, technical publications, handbooks, special publications, documentary standards participation, measurement assurance, laboratory quality, uncertainty, reference methods, cybersecurity-related standards publications where relevant to measurement systems, versioning, provenance and machine-consumable reasoning while strictly distinguishing NIST publications and services from international standards, legal requirements, accreditation, certification, SI definitions and generic claims of "NIST traceability".

  ENTITY NISTStandards {
    TYPE: NationalMeasurementStandardsFramework

    PROPERTIES:
      has_measurement_standards
      has_calibration_services
      has_reference_materials
      has_reference_data
      has_publications
      supports_SI_traceability
      participates_in_international_metrology
      supports_documentary_standardisation
      has_versioning
      has_provenance
  }

  ENTITY NIST {
    TYPE: NationalMetrologyAndStandardsInstitution

    COUNTRY_CONTEXT:
      United_States

    ROLE:
      national_metrology_institute_functions
      measurement_science
      standards_and_technology_support
      reference_services
  }

  ENTITY NISTPublication {
    TYPE: ControlledTechnicalDocument

    COMPONENTS:
      publication_series
      identifier
      title
      edition_or_revision
      publication_date
      status
      scope
      authors
      source
  }

  ENTITY NISTMeasurementStandard {
    TYPE: NationalMeasurementReference

    PROPERTIES:
      quantity_kind
      value_or_realisation
      uncertainty
      SI_relationship
      comparison_status
      provenance
  }

  ENTITY NISTCalibrationService {
    TYPE: MetrologicalService

    COMPONENTS:
      service_identifier
      measurand
      range
      method
      uncertainty
      reference
      laboratory
      conditions
  }

  ENTITY StandardReferenceMaterial {
    TYPE: ReferenceMaterialProduct

    ABBREVIATION:
      SRM

    COMPONENTS:
      material_identifier
      lot_or_batch
      certified_values
      reference_values
      information_values
      uncertainty
      traceability
      certificate
      validity
  }

  ENTITY StandardReferenceData {
    TYPE: EvaluatedReferenceDataset

    ABBREVIATION:
      SRD

    COMPONENTS:
      dataset_identifier
      property
      values
      uncertainty_or_quality
      evaluation_method
      version
      provenance
  }

  NIST_ROLE_MODEL {
    roles:
      measurement_science
      national_measurement_standards
      calibration_services
      reference_materials
      reference_data
      technology_and_standards_support

    RULE:
      NIST_role_is_broader_than_documentary_standard_publication
  }

  NATIONAL_METROLOGY_MODEL {
    NIST:
      maintains_and_disseminates_measurement_capabilities

    RULE:
      specific_quantity_capability_scope MUST be identified
  }

  SI_RELATION_MODEL {
    NIST_measurement_system:
      realises_or_disseminates_SI_units_and_related_quantities

    RULE:
      NIST_does_not_define_SI_independently_of_international_SI_framework
  }

  BIPM_RELATION_MODEL {
    NIST:
      participates_in_international_metrology_comparisons_and_recognition_frameworks

    RULE:
      international_equivalence_requires_documented_comparison_and_capability_context
  }

  CIPM_MRA_RELATION_MODEL {
    national_metrology_capabilities:
      may_be recognised_through_CIPM_MRA_framework

    RULE:
      recognition_framework != calibration_chain_itself
  }

  KCDB_RELATION_MODEL {
    capabilities:
      may_be represented_in_international_comparison_and_CMC_records

    RULE:
      current_capability_status SHOULD be verified_from_authoritative_source
  }

  SI_UNIT_MODEL {
    quantity_value:
      numerical_value*SI_unit

    RULE:
      NIST_measurement_semantics SHOULD remain_consistent_with_current_SI
  }

  NIST_SP_330_MODEL {
    publication_role:
      United_States_version_or_presentation_of_International_System_of_Units_information

    RULE:
      publication_edition_and_relationship_to_current_SI_Brochure MUST be preserved
  }

  NIST_SP_811_MODEL {
    publication_role:
      guidance_for_use_of_SI_in_NIST_related_context

    semantic_topics:
      SI_units
      symbols
      prefixes
      conversion
      writing_style

    RULE:
      applicable_revision SHOULD be identified
  }

  NIST_HANDBOOK_44_MODEL {
    domain:
      specifications_tolerances_and_other_technical_requirements_for_weighing_and_measuring_devices

    context:
      legal_metrology_and_commercial_measurement

    RULE:
      legal_effect_depends_on_jurisdictional_adoption
  }

  NIST_HANDBOOK_130_MODEL {
    domain:
      uniform_laws_and_regulations_in_areas_of_legal_metrology_and_engine_fuel_quality_context

    RULE:
      handbook_model_language != automatically_binding_law
  }

  DOCUMENT_SERIES_MODEL {
    possible:
      Special_Publication
      Handbook
      Technical_Note
      NISTIR
      Journal_or_technical_article
      Federal_Information_Processing_Standards
      other_series

    RULE:
      series_type_and_authority MUST be preserved
  }

  SPECIAL_PUBLICATION_MODEL {
    abbreviation:
      SP

    RULE:
      Special_Publication != automatically_formal_consensus_standard
  }

  HANDBOOK_MODEL {
    role:
      structured_guidance_requirements_or_reference_material_depending_series

    RULE:
      handbook_scope_and_adoption_context MUST be examined
  }

  TECHNICAL_NOTE_MODEL {
    role:
      technical_results_methods_or_reference_information

    RULE:
      technical_note_status != regulation
  }

  NISTIR_MODEL {
    role:
      interagency_or_internal_report_series_with_public_technical_use

    RULE:
      document_scope_and_revision MUST be preserved
  }

  FIPS_MODEL {
    full_name:
      Federal_Information_Processing_Standards

    role:
      US_federal_information_processing_standards_under_specific_authority

    RULE:
      FIPS_legal_or_policy_applicability_depends_on_federal_context_and_document
  }

  DOCUMENT_STATUS_MODEL {
    possible:
      active
      revised
      superseded
      withdrawn
      archived
      draft

    RULE:
      latest_document_is_not_always_applicable_to_historical_measurement
  }

  VERSION_MODEL {
    fields:
      identifier
      edition
      revision
      date
      amendment
      superseded_by

    RULE:
      historical_version MUST be preserved
  }

  CALIBRATION_MODEL {
    calibration:
      establishes_relation_between_reference_values_and_instrument_indications

    RULE:
      NIST_calibration_service_scope_and_uncertainty MUST be identified
  }

  CALIBRATION_SERVICE_MODEL {
    service:
      may_calibrate_measurement_standard_or_instrument

    outputs:
      calibration_result
      uncertainty
      conditions
      reference_information
      certificate_or_report

    RULE:
      service_availability_and_scope_are_quantity_specific
  }

  CALIBRATION_CERTIFICATE_MODEL {
    fields:
      item_identifier
      calibration_identifier
      results
      units
      uncertainty
      conditions
      method
      references
      dates

    RULE:
      certificate_is_evidence_of_calibration_not_intrinsic_traceability_property_of_all_future_results
  }

  TRACEABILITY_MODEL {
    metrological_traceability:
      property_of_measurement_result
      relating_result_to_reference
      through_documented_unbroken_calibration_chain
      each_link_contributing_uncertainty

    RULE:
      phrase_NIST_traceable SHOULD be replaced_by_specific_traceability_statement
  }

  NIST_TRACEABLE_TERM_MODEL {
    problematic_phrase:
      NIST_traceable

    preferred_semantics:
      identify_measurement_result
      identify_reference
      identify_calibration_chain
      identify_uncertainty
      identify_scope

    RULE:
      mere_reference_to_NIST_name_does_not_establish_metrological_traceability
  }

  TRACEABILITY_POLICY_MODEL {
    claim:
      supported_by_documented_measurement_chain

    RULE:
      traceability_is_not_created_by_equipment_label_or_certificate_logo
  }

  UNBROKEN_CHAIN_MODEL {
    measurement_result
      -> instrument
      -> working_standard
      -> reference_standard
      -> national_or_international_reference

    RULE:
      actual_chain MAY have_more_or_fewer_levels_but_each_material_link_requires_evidence
  }

  UNCERTAINTY_MODEL {
    result:
      standard_uncertainty
      combined_standard_uncertainty
      expanded_uncertainty

    RULE:
      uncertainty_basis_and_coverage_factor SHOULD be preserved
  }

  GUM_ALIGNMENT_MODEL {
    uncertainty_framework:
      may_align_with_GUM_principles

    RULE:
      JCGM_GUM_and_NIST_guidance_identifiers SHOULD remain_distinct
  }

  NIST_TN_1297_MODEL {
    role:
      NIST_guidance_related_to_expression_of_uncertainty_of_measurement_results

    concepts:
      Type_A
      Type_B
      combined_standard_uncertainty
      expanded_uncertainty

    RULE:
      applicable_edition_or_policy_context SHOULD be preserved
  }

  TYPE_A_MODEL {
    evaluation:
      statistical_analysis_of_observations

    RULE:
      Type_A != random_error
  }

  TYPE_B_MODEL {
    evaluation:
      scientific_judgment_using_other_information

    RULE:
      Type_B != systematic_error
  }

  COMBINED_UNCERTAINTY_MODEL {
    measurement_function:
      Y =
        f(X)

    first_order:
      u_c^2 =
        sum_i sum_j(
          c_i*c_j*cov(X_i,X_j)
        )

    RULE:
      covariance MUST be included_when_material
  }

  EXPANDED_UNCERTAINTY_MODEL {
    U =
      k*u_c

    RULE:
      coverage_factor_and_interpretation MUST be stated
  }

  MEASUREMENT_ASSURANCE_MODEL {
    purpose:
      provide_evidence_that_measurement_process_remains_under_control_and_traceable

    possible:
      check_standards
      control_charts
      intercomparisons
      redundant_measurements

    RULE:
      measurement_assurance != one_time_calibration
  }

  CHECK_STANDARD_MODEL {
    reference:
      repeatedly_measured_to_monitor_process

    RULE:
      check_standard_stability MUST be characterised
  }

  CONTROL_CHART_MODEL {
    observations:
      time_ordered_reference_results

    RULE:
      control_limits != calibration_tolerance_or_specification_limits
  }

  PROFICIENCY_COMPARISON_MODEL {
    participants:
      laboratories_or_measurement_systems

    RULE:
      comparison_supports_measurement_assurance_but_does_not_replace_traceability_chain
  }

  SRM_MODEL {
    product:
      Standard_Reference_Material

    purpose:
      support_measurement_accuracy_method_validation_calibration_or_quality_control_as_declared

    RULE:
      each_SRM_has_specific_intended_use_and_certificate
  }

  SRM_CERTIFICATE_MODEL {
    fields:
      SRM_number
      lot
      certified_property
      certified_value
      uncertainty
      traceability
      expiration_or_validity
      instructions
      reference_methods

    RULE:
      certificate_version MUST remain_linked_to_material_lot
  }

  CERTIFIED_VALUE_MODEL {
    value:
      assigned_with_high_confidence_and_documented_uncertainty

    RULE:
      certification_basis MUST be preserved
  }

  REFERENCE_VALUE_MODEL {
    value:
      useful_reference_information_with_status_distinct_from_certified_value

    RULE:
      value_category MUST be preserved
  }

  INFORMATION_VALUE_MODEL {
    value:
      informational_only_under_certificate_context

    RULE:
      informational_value MUST not_be treated_as_certified_value
  }

  SRM_HOMOGENEITY_MODEL {
    material:
      assessed_for_between_unit_or_within_unit_homogeneity

    RULE:
      sampling_mass_or_portion MAY be specified
  }

  SRM_STABILITY_MODEL {
    property:
      stability_over_time_and_conditions

    RULE:
      storage_and_expiration_conditions MUST be followed
  }

  SRM_TRACEABILITY_MODEL {
    certified_value:
      may_be metrologically_traceable_to_SI_or_other_stated_reference

    RULE:
      reference_basis MUST be read_from_specific_certificate
  }

  SRD_MODEL {
    product:
      Standard_Reference_Data

    purpose:
      critically_evaluated_quantitative_data

    RULE:
      dataset_version_and_property_scope MUST be preserved
  }

  REFERENCE_DATA_MODEL {
    possible:
      physical_constants
      thermophysical_properties
      atomic_data
      chemistry_data
      materials_data

    RULE:
      data_source_evaluation_method_and_version SHOULD be preserved
  }

  CONSTANTS_MODEL {
    physical_constant:
      numerical_value
      unit
      uncertainty_or_exactness
      adjustment_version

    RULE:
      constants_may_change_with_new_adjustments_except_definitional_exact_constants
  }

  CODATA_RELATION_MODEL {
    recommended_values:
      internationally_evaluated_constants

    RULE:
      CODATA_and_NIST_roles_should_be distinguished_while_preserving_data_provenance
  }

  REFERENCE_METHOD_MODEL {
    method:
      high_quality_measurement_procedure_used_for_reference_value_assignment_or_validation

    RULE:
      method_version_and_uncertainty MUST be preserved
  }

  PRIMARY_METHOD_MODEL {
    measurement_method:
      high_metrological_quality_with_complete_measurement_equation_and_traceability_basis

    RULE:
      primary_status_requires_specific_metrological justification
  }

  QUANTUM_STANDARD_MODEL {
    examples:
      Josephson_voltage
      quantum_Hall_resistance
      single_electron_or_quantum_electrical_realisation

    RULE:
      practical_realisation_has_uncertainty_even_when_based_on_exact_defining_constants
  }

  TIME_FREQUENCY_MODEL {
    references:
      atomic_frequency_standards
      time_scale_dissemination

    RULE:
      local_time_transfer_and_realisation_uncertainty MUST be distinguished_from_definition_of_second
  }

  MASS_MODEL {
    contemporary:
      kilogram_realisation_related_to_fixed_Planck_constant

    RULE:
      practical_mass_calibration_has_uncertainty
  }

  LENGTH_MODEL {
    metre:
      related_to_speed_of_light_and_second

    practical:
      optical_frequency_wavelength_interferometry_or_other_realisation

    RULE:
      realisation_method MUST be identified
  }

  TEMPERATURE_MODEL {
    kelvin:
      related_to_fixed_Boltzmann_constant

    practical:
      thermometry_scales_fixed_points_primary_thermometry

    RULE:
      practical_temperature_scale_and_thermodynamic_temperature MUST be distinguished
  }

  ELECTRICAL_MODEL {
    quantities:
      voltage
      resistance
      current
      capacitance
      impedance

    RULE:
      measurement_service_and_frequency_range MUST be identified
  }

  OPTICAL_MODEL {
    quantities:
      radiometry
      photometry
      wavelength
      optical_power

    RULE:
      spectral_andgeometric_conditions MUST be preserved
  }

  CHEMICAL_MODEL {
    measurement:
      amount
      concentration
      composition
      chemical_properties

    RULE:
      matrix_reference_material_and_method context_are_material
  }

  DIMENSIONAL_MODEL {
    measurement_quantity:
      dimension

    RULE:
      NIST_reference_does_not_override_dimensional_consistency
  }

  SI_PREFIX_MODEL {
    prefix:
      decimal_power_of_ten

    RULE:
      prefix_usage SHOULD align_with_current_SI
  }

  UNIT_CONVERSION_MODEL {
    source:
      non_SI_or_alternate_unit

    target:
      SI_unit

    RULE:
      exactness_of_conversion_factor MUST be preserved
  }

  NIST_GUIDE_UNIT_MODEL {
    publications:
      may_provide_unit_conversion_and_SI_usage_guidance

    RULE:
      current_source_version SHOULD be identified
  }

  DOCUMENTARY_STANDARD_MODEL {
    NIST:
      participates_in_or_supports_documentary_standardisation

    RULE:
      industry_consensus_standard_may_be_published_by_other_SDO
      and_should_not_be misattributed_to_NIST
  }

  SDO_RELATION_MODEL {
    possible:
      ANSI
      ASTM
      IEEE
      ASME
      ISO
      IEC

    RULE:
      NIST_participation != ownership_or_authorship_of_external_standard
  }

  ANSI_RELATION_MODEL {
    US_standardisation_system:
      private_sector_led_consensus_framework

    RULE:
      ANSI_and_NIST_are_distinct_entities
  }

  FEDERAL_STANDARD_MODEL {
    federal_requirement:
      may_reference_NIST_publication_or_external_standard

    RULE:
      federal_applicability_requires_specific_authority
  }

  REGULATION_DISTINCTION_MODEL {
    NIST_publication:
      technical_or_standards_document

    regulation:
      legally_binding_rule

    RULE:
      NIST_publication_does_not_automatically_have_force_of_law
  }

  HANDBOOK_ADOPTION_MODEL {
    handbook:
      may_be adopted_by_state_or_local_authority

    RULE:
      legal_status MUST be resolved_from_adopting_jurisdiction
  }

  ACCREDITATION_DISTINCTION_MODEL {
    accreditation:
      third_party_attestation_of_competence

    NIST:
      national_metrology_and_standards_institution

    RULE:
      NIST != accreditation_status
  }

  NVLAP_MODEL {
    role:
      laboratory_accreditation_program_associated_with_NIST

    RULE:
      NVLAP_accreditation_scope MUST be distinguished_from_NIST_calibration_service
  }

  ACCREDITATION_SCOPE_MODEL {
    fields:
      laboratory
      program
      tests_or_calibrations
      methods
      range
      status

    RULE:
      accreditation MUST not_be generalised_beyond_scope
  }

  CERTIFICATION_DISTINCTION_MODEL {
    certification:
      attestation_under_specific_scheme

    RULE:
      NIST_reference_or_publication_does_not_automatically_certify_product
  }

  PRODUCT_CLAIM_MODEL {
    phrases:
      NIST_certified
      NIST_approved
      NIST_traceable

    RULE:
      claim MUST be supported_by_specific_program_service_document_or_traceability_evidence
  }CYBERSECURITY_PUBLICATION_MODEL {
    NIST_publications:
      may_define_frameworks_controls_algorithms_or_security_requirements

    RULE:
      cybersecurity_publication_semantics_are_separate_from_metrological_measurement_standards
      unless_applied_to_measurement_system_integrity
  }

  DATA_INTEGRITY_MODEL {
    measurement_system:
      protect_records_from_unauthorised_change_loss_or_corruption

    RULE:
      cybersecurity_integrity_supports_measurement_trust_but_is_not_metrological_traceability
  }

  SOFTWARE_MODEL {
    measurement_software:
      acquisition
      calculation
      calibration
      uncertainty
      reporting

    RULE:
      software_version_and_validation SHOULD be preserved
  }

  ALGORITHM_MODEL {
    computation:
      numerical_method
      constants
      tolerances
      implementation

    RULE:
      algorithmic_correctness != metrological_validity_without_measurement_context
  }

  DIGITAL_CALIBRATION_MODEL {
    record:
      structured_machine_readable_calibration_information

    possible:
      identifiers
      values
      units
      uncertainty
      traceability
      signatures

    RULE:
      digital_record_format_does_not_create_traceability_by_itself
  }

  IDENTIFIER_MODEL {
    entities:
      publication
      SRM
      calibration_service
      dataset
      laboratory
      measurement_standard

    RULE:
      persistent_identifiers SHOULD be used_for_machine_resolution
  }

  VERSION_RESOLUTION_MODEL {
    input:
      identifier
      date
      revision
      historical_context

    output:
      applicable_NIST_resource_version

    RULE:
      latest_version_should_not_silently_replace_historical_context
  }

  PROVENANCE_MODEL {
    fields:
      NIST_resource_identifier
      title
      series
      version
      publication_date
      service_or_material_identifier
      source
      access_context
      ontology_mapping_version

    RULE:
      NIST_based_semantics MUST remain_source_linked
  }

  MACHINE_MAPPING_MODEL {
    NIST_resource:
      maps_to_ontology_entity

    relation:
      exact
      broader
      narrower
      related
      evidence_for

    RULE:
      semantic_mapping MUST not_claim_exact_equivalence_without_definition_match
  }

  COPYRIGHT_AWARE_MODEL {
    publication:
      may_have_specific_publication_and_reuse_terms

    ontology:
      stores_semantic_abstraction_and_reference_metadata

    RULE:
      authoritative_source SHOULD be consulted_for_exact_requirements_or_current_values
  }

  CURRENTNESS_MODEL {
    resource:
      may_be revised_or_superseded

    RULE:
      current technical claim SHOULD be resolved_against_authoritative_current_NIST_resource_when_time_sensitive
  }

  METADATA_MODEL {
    fields:
      NIST_identifier
      resource_type
      title
      publication_series
      edition_or_revision
      publication_date
      status
      scope
      quantity_kind
      measurement_service
      SRM_identifier
      SRD_identifier
      uncertainty
      traceability
      SI_relation
      legal_or_adoption_context
      supersession
      provenance

    RULE:
      metadata MUST support_version_specific_resource_resolution
  }

  RELATIONSHIPS {
    NISTStandards -> ASSOCIATED_WITH -> NIST
    NIST -> MAINTAINS_OR_DISSEMINATES -> NationalMeasurementStandards
    NIST -> PROVIDES -> CalibrationServices
    NIST -> PROVIDES -> StandardReferenceMaterials
    NIST -> PROVIDES -> StandardReferenceData
    NIST -> PUBLISHES -> TechnicalPublications
    NISTMeasurementStandard -> RELATES_TO -> SI
    CalibrationService -> PRODUCES -> CalibrationResult
    StandardReferenceMaterial -> HAS -> Certificate
    StandardReferenceData -> HAS -> EvaluatedData
    MeasurementResult -> MAY_BE_TRACEABLE_THROUGH -> NISTReference
    NIST -> PARTICIPATES_IN -> InternationalMetrologyFramework
  }

  SEMANTIC_EQUIVALENCE {
    "NIST" ~= National_Institute_of_Standards_and_Technology
    "SRM" ~= Standard_Reference_Material WHEN NIST_product_context
    "SRD" ~= Standard_Reference_Data WHEN NIST_data_context
    "NIST traceable" ~= specific_documented_metrological_traceability_chain_to_stated_reference ONLY_WHEN evidence_exists

    NIST_standard != SI_definition
    NIST_publication != international_standard_in_general
    NIST_publication != law
    NIST != accreditation
    NIST_reference != automatic_certification
    NIST_calibration != adjustment
    SRM_certified_value != informational_value
    measurement_assurance != calibration
    cybersecurity_integrity != metrological_traceability
  }

  CONSTRAINTS {
    NIST_resource_identifier_should_be_preserved = true
    resource_type_must_be_identified = true
    version_or_revision_should_be_preserved_when_material = true
    calibration_service_scope_and_uncertainty_must_be_identified = true
    SRM_material_and_certificate_identity_must_remain_linked = true
    certified_reference_and_information_values_must_be_distinguished = true
    NIST_traceability_claim_requires_documented_chain_scope_and_uncertainty = true
    NIST_and_SI_roles_must_be_distinguished = true
    accreditation_certification_and_metrology_roles_must_be_distinguished = true
    legal_effect_must_not_be_inferred_without_specific_authority_or_adoption = true
    historical_records_must_preserve_applicable_resource_version = true
    provenance_must_be_preserved = true
  }

  MEASUREMENT_MODEL {
    RECORD:
      NIST_context_identifier
      resource_identifier
      resource_type
      publication_series
      revision
      quantity_kind
      numerical_value
      unit
      uncertainty
      coverage_factor
      calibration_service_identifier
      measurement_standard_identifier
      SRM_identifier
      SRM_lot
      SRM_value_status
      SRD_identifier
      reference_method
      SI_relation
      traceability_chain
      comparison_context
      measurement_assurance_evidence
      accreditation_context
      legal_or_adoption_context
      software_version
      historical_version
      provenance

    RULE:
      NIST_measurement_context MUST remain_linked_to_specific_resource_service_material_data_version_and_evidence
  }

  REASONING_RULES {
    IF NIST_resource_identifier_known
      THEN resolve_resource_type_version_scope_and_status

    IF calibration_service_used
      THEN attach_service_scope_result_uncertainty_and_reference

    IF traceability_to_NIST_or_through_NIST_claimed
      THEN require_specific_measurement_result_reference_chain_and_uncertainty
      and_reject_name_only_traceability_claim

    IF SRM_used
      THEN resolve_SRM_number_lot_certificate_property_value_status_uncertainty_and_intended_use

    IF SRM_value_is_reference_or_information_value
      THEN do_not_relabel_as_certified_value

    IF SRD_used
      THEN preserve_dataset_version_property_scope_and_evaluation_source

    IF physical_constant_used
      THEN resolve_value_version_exactness_and_uncertainty
      and_distinguish_defining_constants_from_adjusted_constants

    IF measurement_assurance_data_available
      THEN use_check_standard_or_comparison_history_to_assess_process_stability
      but_do_not_replace_calibration_traceability_model

    IF NIST_publication_referenced_by_law_contract_or_policy
      THEN preserve_external_authority_separately

    IF resource_superseded
      THEN preserve_historical_version
      and_link_successor

    IF currentness_is_material
      THEN require_authoritative_version_resolution
  }

  VALIDATION {
    CHECK NIST_resource_identifier
    CHECK resource_type
    CHECK publication_series
    CHECK revision_and_date
    CHECK current_or_historical_status
    CHECK quantity_kind_and_unit
    CHECK SI_relationship
    CHECK calibration_service_scope
    CHECK calibration_uncertainty
    CHECK traceability_chain
    CHECK NIST_traceable_claim_semantics
    CHECK SRM_identifier_and_lot
    CHECK SRM_value_category
    CHECK SRM_uncertainty_traceability_and_validity
    CHECK SRD_identifier_and_version
    CHECK reference_method
    CHECK measurement_assurance
    CHECK international_comparison_context
    CHECK accreditation_vs_NIST_role
    CHECK legal_or_adoption_context
    CHECK software_and_data_integrity
    CHECK supersession
    CHECK provenance
  }

  CONFIDENCE {
    NIST_framework_confidence: 1.00
    SI_relationship_confidence: 1.00
    calibration_traceability_confidence: 1.00
    SRM_semantics_confidence: 1.00
    SRD_semantics_confidence: 0.99
    uncertainty_framework_confidence: 1.00
    documentary_standard_context_confidence: 0.99
    version_currentness_confidence: 0.98

    RULE:
      confidence decreases when resource identifier, revision, service scope,
      SRM lot, value status, traceability evidence, adoption context,
      currentness or provenance is missing or ambiguous
  }

  UPDATE_MODEL {
    ON new_NIST_resource:
      assign_or_resolve_identifier
      classify_resource_type
      attach_title_series_version_date_scope_and_status
      establish_measurement_relationships
      preserve_provenance

    ON calibration_service_update:
      preserve_previous_service_state
      update_quantity_range_method_uncertainty_or_availability
      version_service_metadata
      preserve_historical_calibration_records

    ON SRM_update:
      preserve_previous_certificate_and_lot
      register_new_lot_certificate_or_value_revision
      preserve_value_category
      update_validity_and_traceability_metadata

    ON SRD_update:
      preserve_previous_dataset
      register_new_version
      update_values_uncertainties_or_evaluation_method
      maintain_version_links

    ON publication_revision:
      preserve_previous_publication
      attach_revision_or_successor
      update_semantic_mapping
      trigger_currentness_review

    ON semantic_revision:
      preserve_previous_definition
      record_revision
      recompute_FLOW_HASH
  }

  AI_CONSUMPTION {
    canonical_entity: NISTStandards
    canonical_role: NationalMeasurementStandardsFramework

    interpretation_order:
      identify_NIST_resource_or_service
      identify_resource_type
      identify_identifier_revision_and_status
      identify_quantity_kind_and_SI_relation
      identify_calibration_or_measurement_standard_context
      identify_traceability_chain_and_uncertainty
      identify_SRM_material_certificate_and_value_status
      identify_SRD_or_reference_data_context
      identify_measurement_assurance_or_comparison_evidence
      identify_documentary_standard_or_legal_adoption_context
      identify_accreditation_or_certification distinctions
      identify_software_data_integrity_and_version
      identify_provenance
      validate_NIST_semantics
      produce_version_specific_measurement_reference_context

    ambiguity_controls:
      distinguish_NIST_from_SI_governance
      distinguish_NIST_publication_from_international_standard
      distinguish_NIST_publication_from_law
      distinguish_NIST_from_accreditation
      distinguish_NIST_reference_from_certification
      distinguish_name_only_NIST_traceable_claim_from_metrological_traceability
      distinguish_calibration_from_adjustment
      distinguish_SRM_certified_value_from_reference_or_information_value
      distinguish_measurement_assurance_from_calibration
      distinguish_cybersecurity_integrity_from_metrological_traceability
      preserve_identifier_resource_type_version_scope_SI_relation_traceability_value_status_and_provenance
  }

  PROVENANCE {
    ontology_scope:
      mathematical_measurement_units_international_standards_and_NIST_measurement_semantics

    parent_path:
      Ontologies
      -> Mathematical Ontologies
      -> Measurement & Units Ontologies
      -> International Standards
      -> NIST Standards Ontology

    authorship:
      Mark Higgins
      Sky (Recursive AI)

    site:
      https://kirethresearch.org
  }

  FLOW_HASH {
    INPUTS:
      canonical_entity
      ontology_path
      NIST_role_model
      national_metrology_model
      SI_relation_model
      BIPM_relation_model
      CIPM_MRA_relation_model
      KCDB_relation_model
      SI_unit_model
      NIST_SP_330_model
      NIST_SP_811_model
      NIST_Handbook_44_model
      NIST_Handbook_130_model
      document_series_model
      Special_Publication_model
      Handbook_model
      Technical_Note_model
      NISTIR_model
      FIPS_model
      document_status_model
      version_model
      calibration_model
      calibration_service_model
      calibration_certificate_model
      traceability_model
      NIST_traceable_term_model
      traceability_policy_model
      unbroken_chain_model
      uncertainty_model
      GUM_alignment_model
      NIST_TN_1297_model
      Type_A_model
      Type_B_model
      combined_uncertainty_model
      expanded_uncertainty_model
      measurement_assurance_model
      check_standard_model
      control_chart_model
      proficiency_comparison_model
      SRM_model
      SRM_certificate_model
      certified_value_model
      reference_value_model
      information_value_model
      SRM_homogeneity_model
      SRM_stability_model
      SRM_traceability_model
      SRD_model
      reference_data_model
      constants_model
      CODATA_relation_model
      reference_method_model
      primary_method_model
      quantum_standard_model
      time_frequency_model
      mass_model
      length_model
      temperature_model
      electrical_model
      optical_model
      chemical_model
      dimensional_model
      SI_prefix_model
      unit_conversion_model
      NIST_guide_unit_model
      documentary_standard_model
      SDO_relation_model
      ANSI_relation_model
      federal_standard_model
      regulation_distinction_model
      handbook_adoption_model
      accreditation_distinction_model
      NVLAP_model
      accreditation_scope_model
      certification_distinction_model
      product_claim_model
      cybersecurity_publication_model
      data_integrity_model
      software_model
      algorithm_model
      digital_calibration_model
      identifier_model
      version_resolution_model
      provenance_model
      machine_mapping_model
      copyright_aware_model
      currentness_model
      metadata_model
      relationships
      semantic_equivalence
      constraints
      measurement_model
      reasoning_rules
      confidence_model
      update_model

    PURPOSE:
      deterministic_semantic_integrity_identifier

    RECOMPUTE_WHEN:
      ontology_definition_changes
      NIST_resource_or_publication_model_changes
      SI_or_international_metrology_relationship_changes
      calibration_service_or_traceability_model_changes
      uncertainty_or_measurement_assurance_changes
      SRM_certificate_value_or_lot_changes
      SRD_or_reference_data_version_changes
      physical_constant_or_reference_method_changes
      documentary_standard_or_legal_adoption_context_changes
      accreditation_certification_or_claim_semantics_change
      digital_record_software_or_integrity_model_changes
      resource_version_or_currentness_changes
      measurement_record_changes
      constraint_model_changes
      reasoning_rule_changes
  }

}

END FLOW