PAV ontology v2.3.1 (2014-08-28)

Namespace	OWL	Documentation
http://purl.org/pav/	http://purl.org/pav/2.3.1	http://purl.org/pav/2.3.1/html

Changes since v2.3.0:

• Re-added owl:equivalentProperty to PAV 1.2 properties (which where unintentionally removed in 2.3.0)

PAV ontology v2.3.0 (2014-08-22)

Namespace	OWL	Documentation
http://purl.org/pav/	http://purl.org/pav/2.3.0	http://purl.org/pav/2.3.0/html

Changes since v2.2.0:

• Added more versioning properties: pav:hasVersion, pav:hasCurrentVersion, pav:hasEarlierVersion
• Subproperty relations to prov:alternateOf, prov:specializationOf, prov:generalizationOf, dct:hasVersion
• pav:previousVersion subproperty of pav:hasEarlierVersion
• Ontology metadata adds owl:priorVersion and new contributors.
• HTML: Updated diagram to show versioning

PAV ontology v2.1.2 (2013-08-16)

Namespace	OWL	Documentation
http://purl.org/pav/	http://purl.org/pav/2.1.2	http://purl.org/pav/2.1.2/html

Changes since v2.1.1:

• Misspelling in description of pav:createdBy - dct:createdBy changed to dct:creator

PAV ontology v2.2.0 (2013-08-30)

Namespace	OWL	Documentation
http://purl.org/pav/	http://purl.org/pav/2.2.0	http://purl.org/pav/2.2.0/html

Changes since v2.1.2:

• DC Terms subproperties introduced:
  • pav:authoredBy subproperty of dcterms:creator (creation of content)
  • pav:createdBy subproperty of dcterms:creator (creation of representation)
  • pav:contributedBy subproperty of dcterms:contributor (contribution of content)
  • Avoids OWL import of http://purl.org/dc/terms/ - instead includes property definitions of the above
  • Remaining properties still mapped to DCTerms in SKOS
• Description for date properties like pav:createdOn explain how to form an xsd:dateTime when time is unknown
• Descriptions have clarified intended functionality, e.g. pav:authoredBy indicate the last authoring date.
• Examples in descriptions further clarify the distinction between creation of representation and authoring of content.
• added owl:isDefinedBy <http://purl.org/pav/> for PAV terms
• HTML documentation includes hierarchy of referenced PROV and DCTerms superproperties, but not their labels (making it clear that they are not defined by PAV), see for example prov:wasRevisionOf

PAV ontology v2.1.1 (2013-03-26)

Namespace	OWL	Documentation
http://purl.org/pav/	http://purl.org/pav/2.1.1	http://purl.org/pav/2.1.1/html

Changes since v2.1.0:

• Link to overview diagram
• Modified descriptions for pav:importedFrom to clarify that the translated knowledge does not need to be complete
• Elaborated pav:createdWith, pav:derivedFrom, pav:importedBy, pav:retrievedBy
• A SKOS mapping for: dcterms; uses PAV in SKOS. This mapping is also described as a VoID dataset.

PAV ontology v2.1.0 (2013-02-27)

Namespace	OWL	Documentation
http://purl.org/pav/	http://purl.org/pav/2.1.0	http://purl.org/pav/2.1.0/html

Changes since v2.0:

• Sub-property mapping to PROV-O. Note that PROV-O is not imported by PAV, so you may import http://www.w3.org/ns/prov#, for instance to get the inferred domains and ranges from PROV.
• Includes introduction about PAV ontology
• Descriptions of properties are elaborated with examples and relationships to each other
• Backward compatibility with PAV 1.2 terms indicated using owl:equivalentProperty (Note that the ontology itself is owl:incompatibleWith, because several PAV 1 properties have changed names or are organized in a flatter hierarchy).
• pav:curates marked as deprecated, use its inverse pav:curatedBy
• owl:versionIRI does now does NOT end in a / - this is to avoid confusion between the versionIRI and the namespace (which stays unchanged).
• HTML representation of ontology, made using LODE
• OWL-file includes a little XSLT stylesheet so that accessing http://purl.org/pav/ in a browser will give links to the above HTML documentation
• The individual URIs in the PAV namespace - like http://purl.org/pav/authoredBy - redirect to the OWL ontology

PAV Ontology v1.2 (2009-01-13)

Namespace	OWL	Documentation
http://swan.mindinformatics.org/ontologies/1.2/pav/	http://purl.org/pav/1.2/	http://purl.org/pav/1.2/html

• PAV module from the SWAN ontology 1.2

PAV ontology v2.0 (2012-04-04)

Namespace	versionIRI / OWL	Documentation
http://purl.org/pav/	http://purl.org/pav/2.0/	http://purl.org/pav/2.0/html

• Initial release independent from SWAN
• New namespace http://purl.org/pav/
• Terms removed: acceptedOn, authors, contributors, curators, importedFirstOn, importedLastOn, importedWithId, lastUpdateBy, publishedBy, publishedOn, sourceFirstAccessedOn, submittedBy, submittedOn
• Terms renamed: importedFromSource->importedFrom, versionNumber->version
• Terms added: authoredOn, contributedOn, createdAt, createdWith, curatedOn, curates, derivedFrom, lastRefreshedOn, providedBy, retrievedBy, retrievedFrom, retrievedOn, sourceAccessedBy

Note that during development of PAV 2.0, the ontology was split into three modules (with a common namespace): provenance authoring and versioning - but these modules were later merged to the single PAV ontology. For backward-compatibility, these module versionIRIs now simply import the whole PAV ontology.