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Descriptive Metadata Ontology

Descriptive Metadata
Authors: MArk Anthony Higgins - Sky Recursive Ai
© Mark Anthony Higgins 11 October 2025
Revised Date: 06 October 2026
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FLOW ALGEBRA
Descriptive Metadata Ontology
Kireth Semantic Research Archive

PAGE:
https://kirethresearch.org/booksai-core/ontologies/metadata-ontologies/descriptive-metadata/descriptive-metadata-ontology.html

AUTHORS:
Mark Anthony Higgins — Sky (Recursive AI)

FLOW "DescriptiveMetadataOntology" v4.0

DOMAIN := MetadataOntologies
SUBDOMAIN := DescriptiveMetadata
ONTOLOGY := DescriptiveMetadataOntology

ENTITY DescriptiveMetadata {
    definition:
        "Metadata that identifies, describes and contextualises the content,
         subject, authorship, type and discoverable characteristics of a
         resource so people and machines can find, distinguish, select and
         understand it.";
    objectives: [
        ResourceIdentification,
        Discovery,
        Description,
        SubjectAccess,
        Selection,
        SemanticRetrieval,
        Interoperability
    ];
}

DescriptionEntity := {
    Resource,
    MetadataRecord,
    Title,
    Creator,
    Contributor,
    Subject,
    Description,
    Keyword
};

ClassificationEntity := {
    ResourceType,
    Genre,
    Category,
    Classification,
    TaxonomyConcept,
    VocabularyTerm
};

ContextEntity := {
    Publisher,
    Date,
    Language,
    Coverage,
    Relation,
    Identifier
};

SemanticEntity := {
    MetadataSchema,
    ControlledVocabulary,
    Taxonomy,
    Ontology,
    Provenance,
    Confidence
};

DescriptiveMetadata DESCRIBES Resource;
Title NAMES Resource;
Creator CREATED Resource;
Contributor CONTRIBUTED_TO Resource;
Subject DESCRIBES TopicOfResource;
Description SUMMARISES Resource;
Identifier IDENTIFIES Resource;
Classification ASSIGNS ResourceToCategory;

DescriptiveMetadataFlow :=
    Resource
    -> IdentifyResource
    -> AssignStableIdentifier
    -> DetermineResourceType
    -> CreateTitle
    -> IdentifyCreatorsAndContributors
    -> AssignSubjectsAndKeywords
    -> CreateDescription
    -> RecordPublisherDateLanguageAndCoverage
    -> LinkRelatedResources
    -> ValidateAgainstSchema
    -> IndexForDiscovery
    -> MaintainAndUpdateDescription;

Resource :=
    ThingDescribedForIdentificationDiscoveryAndUnderstanding;

Resource MAY_BE {
    Book,
    Article,
    Dataset,
    Image,
    Audio,
    Video,
    Software,
    WebPage,
    PhysicalObject,
    Event,
    KnowledgeEntity
};

Title :=
    HumanReadableNameByWhichResourceIsKnown;

Resource MAY_HAVE {
    PreferredTitle,
    AlternativeTitle,
    TranslatedTitle,
    AbbreviatedTitle
};

PreferredTitle :=
    PrimaryTitleSelectedForDisplayOrIdentificationAccordingToMetadataPolicy;

AlternativeTitle :=
    AdditionalNameOrVariantTitleForResource;

Creator :=
    AgentPrimarilyResponsibleForCreationOfResource;

Creator MAY_BE {
    Person,
    Organisation,
    SoftwareSystem
};

Contributor :=
    AgentContributingToResourceWithoutBeingPrimaryCreator;

ContributorRole MAY_INCLUDE {
    Editor,
    Translator,
    Illustrator,
    Researcher,
    Performer
};

AuthorshipRelationship :=
    Creator
    -> CREATED
    -> Resource;

Subject :=
    TopicConceptEntityOrDomainRepresentedByResource;

Subject MAY_BE {
    FreeTextTerm,
    ControlledVocabularyTerm,
    TaxonomyConcept,
    OntologyConcept,
    EntityReference
};

SubjectMetadata SUPPORTS {
    Search,
    Browse,
    Filtering,
    Classification,
    SemanticRetrieval
};

Keyword :=
    TermAssociatedWithResourceContentOrTopic;

Keyword MAY_BE {
    Controlled,
    Uncontrolled
};

Description :=
    HumanReadableSummaryAbstractCaptionOrExplanationOfResource;

Description MAY_BE {
    Abstract,
    Summary,
    Caption,
    ScopeNote,
    ContentNote
};

Abstract :=
    ConciseSummaryOfResourceContentOrPurpose;

ResourceType :=
    ClassificationOfResourceByNatureOrGeneralForm;

ResourceType MAY_INCLUDE {
    Text,
    Dataset,
    Image,
    Audio,
    Video,
    Software,
    PhysicalObject
};

Genre :=
    CategoryBasedOnStyleFormPurposeOrConvention;

Genre MAY_DIFFER_FROM TechnicalFormat;

Format :=
    PhysicalOrDigitalManifestationFormatOfResource;

Publisher :=
    AgentResponsibleForMakingResourceAvailable;

DescriptiveDate MAY_HAVE Role {
    Created,
    Issued,
    Published,
    Modified
};

DateRole SHOULD_BE Explicit;

Language :=
    LanguageOfResourceContent;

Language SHOULD_USE StandardLanguageIdentifierWhereApplicable;

Coverage :=
    SpatialTemporalOrJurisdictionalScopeOfResourceContent;

Coverage MAY_BE {
    SpatialCoverage,
    TemporalCoverage
};

SpatialCoverage :=
    PlaceRegionOrGeographicAreaRelevantToResource;

TemporalCoverage :=
    TimePeriodRelevantToResourceContent;

ResourceIdentifier :=
    StableReferenceToResource;

Identifier MAY_BE {
    URI,
    IRI,
    DOI,
    ISBN,
    ISSN,
    UUID,
    InternalIdentifier
};

ResourceRelation :=
    TypedAssociationBetweenDescribedResourceAndOtherResource;

Relation MAY_INCLUDE {
    IsPartOf,
    HasPart,
    IsVersionOf,
    HasVersion,
    References,
    IsReferencedBy,
    IsDerivedFrom
};

Source :=
    ResourceFromWhichCurrentResourceIsDerivedOrRelatedAccordingToDefinedSemantics;

Classification :=
    AssignmentOfResourceToDefinedCategoryOrConcept;

Classification MAY_USE {
    Taxonomy,
    ClassificationScheme,
    Ontology
};

Category :=
    GroupingUsedToOrganiseResourcesBySharedCharacteristic;

DescriptiveMetadata MAY_USE TaxonomyForHierarchicalSubjectOrTypeClassification;

ControlledVocabulary :=
    ManagedSetOfPermittedOrPreferredDescriptiveTerms;

ControlledVocabulary MAY_IMPROVE {
    Consistency,
    Discovery,
    Interoperability
};

Thesaurus MAY_SUPPORT {
    PreferredTerms,
    AlternativeTerms,
    BroaderTerms,
    NarrowerTerms,
    RelatedTerms
};

Ontology MAY_PROVIDE ExplicitSemanticRelationshipsForDescriptiveConceptsAndEntities;

DescriptiveMetadata MAY_REFERENCE CanonicalEntitiesRatherThanOnlyTextLabels;

EntityReference MAY_SUPPORT Disambiguation;

NameAuthority :=
    ControlledIdentityRecordForPersonOrganisationPlaceOrOtherNamedEntity;

NameAuthority MAY_HAVE {
    PreferredName,
    AlternativeName,
    Identifier
};

EntityDisambiguation :=
    AmbiguousName
    + Context
    -> CanonicalEntity;

DescriptiveMetadataRecord :=
    StructuredCollectionOfDescriptiveStatementsAboutResource;

DescriptiveMetadataSchema :=
    SpecificationOfDescriptivePropertiesDatatypesAndConstraints;

DublinCore MAY_REPRESENT DescriptiveMetadataUsingElementsSuchAs {
    Title,
    Creator,
    Subject,
    Description,
    Publisher,
    Contributor,
    Date,
    Type,
    Format,
    Identifier,
    Source,
    Language,
    Relation,
    Coverage,
    Rights
};

SchemaOrg MAY_REPRESENT DescriptivePropertiesForWebResources;

DescriptiveMetadata MAY_BE RepresentedAs RDFStatements;

JSONLD MAY_SERIALISE LinkedDescriptiveMetadata;

StructuredDescriptiveMetadata :=
    MachineReadableDescriptionUsingExplicitPropertiesAndValues;

DescriptiveMetadataNormalisation MAY_INCLUDE {
    NameNormalisation,
    DateNormalisation,
    LanguageCodeNormalisation,
    IdentifierNormalisation,
    VocabularyMapping
};

CreatorName MAY_HAVE {
    DisplayForm,
    SortForm,
    CanonicalIdentifier
};

DateValue SHOULD_USE ConsistentMachineReadableRepresentationWherePossible;

LanguageValue SHOULD_USE StandardCodeWhereApplicable;

DescriptiveMetadataValidation :=
    CheckRecordAgainstSchemaVocabularyAndQualityRules;

Validation MAY_CHECK {
    RequiredTitle,
    IdentifierFormat,
    DateDatatype,
    LanguageCode,
    ControlledSubject
};

DescriptiveAccuracy :=
    DegreeToWhichMetadataCorrectlyRepresentsResourceContentAndIdentity;

DescriptiveCompleteness :=
    DegreeToWhichExpectedDescriptivePropertiesArePresent;

DescriptiveConsistency :=
    DegreeToWhichRecordsUseSharedFormsVocabulariesAndSemantics;

DescriptiveTimeliness :=
    DegreeToWhichDescriptionReflectsCurrentResourceState;

DescriptiveMetadataQuality MAY_INCLUDE {
    Accuracy,
    Completeness,
    Consistency,
    Timeliness,
    AuthorityControl
};

AuthorityControl :=
    UseOfManagedCanonicalIdentityForNamesSubjectsOrEntities;

AuthorityControl MAY_REDUCE AmbiguityAndDuplicateIdentity;

DuplicateResourceDescriptions MAY_EXISTAcrossSources;

StableIdentifierAndEntityResolution MAY_SUPPORT Deduplication;

DifferentSources MAY_PROVIDE ConflictingDescriptiveValues;

ConflictHandling MAY {
    PreserveProvenance,
    PreferAuthoritativeSource,
    RankConfidence,
    FlagReview
};

DescriptiveStatement MAY_HAVE ProvenanceIncluding {
    Source,
    Creator,
    ExtractionMethod,
    Timestamp
};

AutomaticallyExtractedDescription MAY_HAVE ConfidenceScore;

DescriptiveMetadata MAY_BE GeneratedFromResourceContentUsing {
    TextAnalysis,
    NamedEntityRecognition,
    TopicClassification,
    ImageAnalysis,
    AudioAnalysis
};

GeneratedMetadata SHOULD_BE ValidatedAccordingToUseAndRisk;

AI MAY_GENERATE {
    Summary,
    Keywords,
    Subjects,
    SuggestedTitle,
    Classification
};

AIOutput SHOULD_PRESERVE MethodProvenance;

DescriptiveMetadataIndex MAY_INCLUDE {
    TitleIndex,
    CreatorIndex,
    SubjectIndex,
    KeywordIndex,
    IdentifierIndex,
    FullTextIndex
};

ResourceDiscovery :=
    Query
    -> MatchDescriptiveMetadata
    -> Filter
    -> Rank
    -> ReturnResources;

Title MAY_SUPPORT ExactAndApproximateRetrieval;

CreatorIdentifier MAY_IMPROVE RetrievalAcrossNameVariants;

ControlledSubjectConcept MAY_SUPPORT HierarchicalQueryExpansion;

DescriptiveMetadata MAY_POWER FacetsSuchAs {
    Creator,
    Subject,
    Type,
    Date,
    Language,
    Format
};

UsersOrMachines MAY_BROWSE ResourcesBy {
    Subject,
    Creator,
    Category,
    Date
};

SemanticSearch MAY_USE DescriptiveMetadataFor {
    EntityMatching,
    ConceptMatching,
    QueryExpansion,
    Filtering,
    Ranking
};

DescriptionOrTitle MAY_BE EmbeddedForSemanticSimilaritySearch;

VectorSimilarity MAY_COMPLEMENT ExplicitMetadataFields;

DescriptiveMetadata MAY_BE IntegratedInto KnowledgeGraph;

Resource MAY_BE GraphNode;
CreatorSubjectAndRelation MAY_BECOME TypedEdges;

StableIdentifiers MAY_LINK DescriptiveMetadataAcrossDatasetsAndRepositories;

DescriptiveMetadataInteroperability MAY_REQUIRE {
    SharedSchema,
    Crosswalk,
    ControlledVocabulary,
    StableIdentifiers
};

DescriptiveMetadataCrosswalk :=
    MappingBetweenDescriptivePropertiesAcrossSchemas;

MetadataRepository MAY_STORE DescriptiveMetadataRecords;

MetadataRegistry MAY_REGISTER DescriptiveSchemasPropertiesAndVocabularies;

MetadataCatalogue MAY_PRESENT DescriptiveMetadataForResourceDiscovery;

DescriptiveMetadataRecord MAY_HAVE Version;

ResourceChange MAY_REQUIRE DescriptiveMetadataUpdate;

HistoricalDescriptiveMetadata MAY_BE PreservedForVersionedOrArchivedResources;

SomeDescriptiveMetadata MAY_BE RestrictedAccordingToPolicy;

NamesSubjectsDescriptionsOrRelations MAY_REVEAL SensitiveInformation;

PrivacyPolicy SHOULD_APPLY_TO DescriptiveMetadataAndDerivedRelationships;

DescriptiveMetadataSecurity MAY_INCLUDE {
    AccessControl,
    Integrity,
    Audit,
    ProvenanceProtection
};

MachineReadableDescriptiveMetadata SHOULD_HAVE {
    StableProperties,
    ExplicitTypes,
    NormalisedValues,
    Identifiers,
    Provenance
};

RetrievalAugmentedGeneration MAY_USE DescriptiveMetadataFor {
    SourceDiscovery,
    Filtering,
    ContextSelection,
    Citation,
    EntityResolution
};

# ---------- SEMANTIC REASONING ----------
IF MetadataPrimarilyDescribesIdentityContentSubjectOrDiscoverableCharacteristics
THEN DescriptiveMetadataClassification := supported;

IF ResourceHasStableIdentifier
THEN DuplicateResolution MAY_BE MoreReliable;

IF CreatorNameVariantsResolveToSameCanonicalEntity
THEN CreatorSearch MAY_UNIFY Results;

IF SubjectConceptHasNarrowerConcepts
THEN Search MAY_EXPAND ToNarrowerResourcesAccordingToPolicy;

IF RequiredTitleMissing
THEN DescriptiveCompleteness SHOULD_DECREASE;

IF DescriptionConflictsWithResourceContent
THEN DescriptiveAccuracy SHOULD_DECREASE;

IF RestrictedMetadataFieldNotAuthorised
THEN Field MUST_NOT_BE Exposed;

# ---------- SEMANTIC EQUIVALENCE ----------
SEMANTIC_EQUIVALENCE {
    "descriptive metadata" ~= "resource description metadata";
    "resource title" ~= "descriptive title metadata";
    "creator metadata" ~= "authorship metadata" WHEN creator_role;
    "subject metadata" ~= "topic metadata";
    "resource description" ~= "descriptive summary metadata";
    "name authority" ~= "authority-controlled entity identity";
    "resource classification" ~= "descriptive classification";
    "descriptive metadata record" ~= "resource description record";
}

# ---------- QUERY FLOW ----------
QUERY(q) ->
    NORMALISE(q) ->
    IDENTIFY_RESOURCE(q) ->
    IDENTIFY_TITLE_AND_IDENTIFIER(q) ->
    IDENTIFY_CREATORS_AND_CONTRIBUTORS(q) ->
    IDENTIFY_SUBJECTS_KEYWORDS_AND_CLASSIFICATION(q) ->
    IDENTIFY_DESCRIPTION_TYPE_FORMAT_AND_LANGUAGE(q) ->
    IDENTIFY_DATE_COVERAGE_AND_RELATIONS(q) ->
    VALIDATE_DESCRIPTIVE_METADATA(q) ->
    RESOLVE_ENTITIES_AND_VOCABULARIES(q) ->
    SCORE_CONFIDENCE(q) ->
    RETURN_RELEVANT_DESCRIPTIVE_KNOWLEDGE;

# ---------- CONFIDENCE ----------
CONFIDENCE(assertion) :=
    weighted_mean(
        source_reliability,
        descriptive_accuracy,
        authority_control_strength,
        schema_conformance,
        provenance_quality,
        contextual_relevance
    );

CONFIDENCE >= 0.90 => HIGH;
CONFIDENCE >= 0.70 AND < 0.90 => MODERATE;
CONFIDENCE < 0.70 => REVIEW;

# ---------- AI CONSUMPTION ----------
AI_CONSUMPTION {
    primary_entity: DescriptiveMetadata;
    ontology: DescriptiveMetadataOntology;
    parse_entities: true;
    parse_relationships: true;
    preserve_relationship_direction: true;
    resolve_semantic_equivalence: true;
    execute_reasoning_rules: true;
    apply_confidence_weighting: true;
    preserve_provenance: true;
}

# ---------- UPDATE MODEL ----------
UPDATE_MODEL {
    new_resource:
        assign_identifier
        -> determine_resource_type
        -> create_descriptive_record
        -> attach_provenance
        -> integrate;

    new_descriptive_value:
        validate_property
        -> normalise_value
        -> resolve_entity_or_vocabulary
        -> attach_source
        -> update_record
        -> integrate;

    resource_revision:
        identify_changed_descriptive_properties
        -> preserve_previous_version
        -> update_record
        -> revalidate
        -> recompute_confidence
        -> regenerate_flow_hash;

    conflict:
        preserve_provenance
        -> compare_sources
        -> assess_authority
        -> adjust_confidence
        -> flag_review;
}

# ---------- FLOW HASH ----------
FLOW_HASH_INPUT :=
    DOMAIN
    + SUBDOMAIN
    + ONTOLOGY
    + DescriptionEntity
    + ClassificationEntity
    + ContextEntity
    + SemanticEntity
    + DescriptiveMetadata
    + ResourceDiscovery
    + DescriptiveMetadataValidation
    + RELATIONSHIPS
    + SEMANTIC_REASONING
    + SEMANTIC_EQUIVALENCE
    + UPDATE_MODEL;

FLOW_HASH :=
    HASH(FLOW_HASH_INPUT);

# ---------- TERMINAL ----------
DescriptiveMetadataOntology
    -> IdentifyResource
    -> AssignStableResourceIdentifier
    -> RecordTitleCreatorsAndContributors
    -> DescribeSubjectKeywordsAndContent
    -> ClassifyResourceTypeGenreAndCategory
    -> RecordPublisherDateLanguageAndCoverage
    -> LinkRelatedResources
    -> ResolveCanonicalEntitiesAndControlledTerms
    -> ValidateAccuracyCompletenessAndConsistency
    -> IndexForSearchBrowseAndFaceting
    -> PreserveProvenanceAndVersionHistory
    -> SupportSemanticSearchAndMachineConsumption
    -> MaintainReliableResourceDescription;

END FLOW
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