PROV model integration.

src/entity/ComponentInformation.ts

@@ -169,7 +169,7 @@ export default class ComponentInformation {
     toJSONLD(): Record<string, unknown> {
         const document: Record<string, unknown> = {
             "@context": ContextDefinitions.information(this.type.context, this.previousVersion, this.nextVersion),
-            "@type": "ComponentInformation",
+            "@type": "prov:Entity",
             "identifier": { "@id": `${config.baseURL}/information/${this.id.toString()}` },
             "dateCreated": this.dateCreated.toISOString(),
             "name": this.name,
@@ -185,11 +185,11 @@ export default class ComponentInformation {
         };
 
         if(this.nextVersion) {
-            document.nextVersion = { "@id": `${config.baseURL}/information/${this.nextVersion.id.toString()}` };
+            document["prov:hadRevision"] = { "@id": `${config.baseURL}/information/${this.nextVersion.id.toString()}` };
         }
 
         if(this.previousVersion) {
-            document.previousVersion = { "@id": `${config.baseURL}/information/${this.previousVersion.id.toString()}` };
+            document["prov:wasRevisionOf"] = { "@id": `${config.baseURL}/information/${this.previousVersion.id.toString()}` };
         }
 
         return document;

src/entity/Measurement.ts

@@ -119,9 +119,11 @@ export default class Measurement {
     toJSONLD(): Record<string, unknown> {
         const document: Record<string, unknown> = {
             "@context": ContextDefinitions.measurement(this.valueType.context, this.metadataType?.context),
+            "@type": "prov:Entity",
             "identifier": { "@id": `${config.baseURL}/measurement/${this.id.toString()}` },
             "dateCreated": this.dateCreated.toISOString(),
             "license": { "@id": this.license },
+            "prov:hadPrimarySource": { "@id": `${config.baseURL}/information/${this.componentInformation.id.toString()}` },
             "value": this.value
         };
 

src/util/ContextDefinitions.ts

@@ -22,7 +22,8 @@ const information = function(metadataContext: unknown, previousVersion: Componen
         "comment": "https://schema.org/comment",
         "informationLicense": "https://www.w3.org/1999/xhtml/vocab#license",
         "measurementLicense": "https://www.w3.org/1999/xhtml/vocab#license",
-        "topic": "https://schema.org/text"
+        "topic": "https://schema.org/text",
+        "prov" : "http://www.w3.org/ns/prov#"
     };
 
     if(previousVersion) {
@@ -38,6 +39,7 @@ const information = function(metadataContext: unknown, previousVersion: Componen
 
 const measurement = function(valueContext: unknown, metadataContext: unknown | undefined): Record<string, unknown> {
     const result: Record<string, unknown> = {
+        "prov" : "http://www.w3.org/ns/prov#",
         "id": { "@id": "https://schema.org/url", "@type": "@id"},
         "dateCreated": "https://schema.org/dateCreated",
         "license": "https://www.w3.org/1999/xhtml/vocab#license",