classDiagram
 class DigitalMedia { 
   dcterms:identifier : string 
   ods:fdoType : string 
   ods:version : integer 
   ods:status : None 
   dcterms:modified : string 
   dcterms:created : string 
   dcterms:type : string 
   ac:accessURI : string 
   ods:sourceSystemID : string 
   ods:sourceSystemName : string 
   ods:organisationID : string 
   ods:organisationName : string 
   dcterms:format : string 
   ac:metadataLanguage : string 
   ac:metadataLanguageLiteral : string 
   ac:subtype : string 
   ac:subtypeLiteral : string 
   dcterms:title : string 
   dcterms:language : string 
   dcterms:description : string 
   dcterms:rights : string 
   xmpRights:Owner : string 
   dcterms:available : string 
   ac:comments : string 
   dcterms:source : string 
   Iptc4xmpExt:CVterm : string 
   ac:subjectCategoryVocabulary : string 
   ac:variant : string 
   ac:variantLiteral : string 
   ac:variantDescription : string 
   exif:PixelYDimension : integer 
   exif:PixelXDimension : integer 
   ac:tag : array<string> 
   xmp:CreateDate : string 
   ac:timeOfDay : string 
   ac:subjectOrientation : string 
   ac:subjectOrientationLiteral : string 
   ac:subjectPart : string 
   ac:subjectPartLiteral : string 
   ac:captureDevice : string 
   ac:digitizationDate : string 
   ac:frameRate : number 
   ac:resourceCreationTechnique : string 
   ods:hasAssertions : array<ods:Assertion> 
   ods:hasCitations : array<ods:Citation> 
   ods:hasIdentifiers : array<ods:Identifier> 
   ods:hasEntityRelationships : array<ods:EntityRelationship> 
   ods:hasAgents : array<ods:Agent> 
   ods:hasTombstoneMetadata : object 
 }
 class Agent { 
   schema:identifier : string 
   schema:name : string 
   ods:hasRoles : array<ods:Role> 
   schema:email : string 
   schema:url : string 
   ods:hasIdentifiers : array<ods:Identifier> 
 }
 class Role { 
   schema:roleName : string 
   schema:startDate : string 
   schema:endDate : string 
   schema:position : integer 
 }
 class Assertion { 
   dwc:measurementID : string 
   dwc:parentMeasurementID : string 
   dwc:measurementType : string 
   dwciri:measurementType : string 
   dwc:measurementDeterminedDate : string 
   dwc:measurementValue : string 
   dwciri:measurementValue : string 
   dwc:measurementAccuracy : string 
   dwc:measurementUnit : string 
   dwciri:measurementUnit : string 
   dwc:measurementMethod : string 
   dwciri:measurementMethod : string 
   dwc:measurementRemarks : string 
   ods:hasAgents : object 
   ods:hasCitations : array<ods:Citation> 
 }
 class Citation { 
   dcterms:identifier : string 
   dcterms:type : string 
   dcterms:date : string 
   dcterms:title : string 
   ods:pageNumber : string 
   dcterms:description : string 
   dcterms:bibliographicCitation : string 
   ods:isPeerReviewed : boolean 
   ods:hasAgents : object 
 }
 class EntityRelationship { 
   dwc:relationshipOfResource : string 
   dwc:relationshipOfResourceID : string 
   dwc:relatedResourceID : string 
   ods:relatedResourceURI : string 
   dwc:relationshipEstablishedDate : string 
   dwc:relationshipRemarks : string 
   ods:hasAgents : object 
 }
 class Identifier { 
   dcterms:title : string 
   dcterms:type : string 
   dcterms:identifier : string 
   dcterms:format : array<string> 
   dcterms:subject : array<string> 
   ods:isPartOfLabel : boolean 
   ods:gupriLevel : string 
   ods:identifierStatus : string 
 }
 class TombstoneMetadata { 
   ods:tombstoneDate : string 
   ods:tombstoneText : string 
   ods:hasAgents : object 
   ods:hasRelatedPIDs : array<ods:RelatedPID> 
 }
 class RelatedPID { 
   dcterms:identifier : string 
   schema:identifier : string 
   ods:relationshipType : string 
 }
DigitalMedia -- Agent
Agent -- Role
Assertion -- Agent
Assertion -- Citation
DigitalMedia -- Assertion
DigitalMedia -- Citation
Citation -- Agent
DigitalMedia -- EntityRelationship
EntityRelationship -- Agent
DigitalMedia -- Identifier
Agent -- Identifier
DigitalMedia -- TombstoneMetadata
TombstoneMetadata -- RelatedPID
TombstoneMetadata -- Agent