Brief Introduction to the Provenance Vocabulary (for W3C prov-xg)

The Provenance Vocabulary http://purl.org/net/provenance/ Olaf Hartig Jun Zhao W3C Provenance Incubator Group call May 14, 2010

Our Goal ● Integrate provenance metadata into the Web of data to enable information quality assessment ● Vocabulary to describe provenance of Linked Data on the Web ● Easy to use ● By people who provide Linked Data ● By developers of Linked Data publishing tools May 14, 2010 The Provenance Vocabulary 2

Overview of the Vocabulary ● Defined as an OWL ontology ● Partitioned into: ● Core ontology ● Supplementary modules: types, integrity verification May 14, 2010 The Provenance Vocabulary 3

Overview of the Vocabulary May 14, 2010 The Provenance Vocabulary 4

Example < > a prv:DataItem ; foaf:primaryTopic <http://example.org/gene/0030840> . prv:createdBy [ a prv:DataCreation ; prv:performedAt "2010-03-01...00:00"^^xsd:dateTime ; prv:performedBy <http://example.org/triplify> ; prv:usedGuideline _:a ; prv:usedData _:b ] . <http://example.org/triplify> a prv:NonHumanActor ; rdfs:comment "Instance of Triplify V0.5" ; prv:operatedBy <http://olafhartig.de/foaf.rdf#olaf> . The data item was created by a process, performed at a given time and performed by a service ex:triplify that was operated by myfoaf:olaf. May 14, 2010 The Provenance Vocabulary 5

Example cont. _:a a prvTypes:TriplifyConfiguration , prv:CreationGuideline; prv:createdBy [ a prv:DataCreation ; prv:performedBy <http://olafhartig.de/foaf.rdf#olaf> ] . _:b a prv:DataItem ; prv:retrievedBy [ a prv:DataAccess ; prv:performedAt "2010-03-01T12...00:00"^^xsd:dateTime ; prv:performedBy <http://example.org/triplify> ; prv:accessedService [ a prv:DataProvidingService , prvTypes:JDBCService ; foaf:homepage <http://flybase.org/> ] ]. The source data item _:b –used to create the data item described before– was retrieved by ex:triplify by accessing a public JDBC access point. May 14, 2010 The Provenance Vocabulary 6

Design Principles ● Usability and understandability ● No specific granularity prescribed ● void:Dataset rdfs:subClassOf prv:DataItem ● rdf:Statement rdfs:subClassOf prv:DataItem ● Other vocabularies for more detailed descriptions of certain aspects ● OPMV, PML, HTTP vocab, Changeset, etc. ● Schema-level links to related Vocabularies ● e.g. prv:Actor owl:equivalentClass foaf:Agent May 14, 2010 The Provenance Vocabulary 7

Provenance-enabled Publication ● Metadata components for widely used Linked Data publishing tools ● Triplify ● Pubby ● D2R Server ● Automatic generation of provenance metadata ● Simple configuration May 14, 2010 The Provenance Vocabulary 8

Future Work ● Alignment with other provenance-related vocabularies and models ● Additional modules for specific aspects that are not covered by other vocabularies ● Integration in other publication tools May 14, 2010 The Provenance Vocabulary 9

These slides have been created by Jun Zhao and Olaf Hartig This work is licensed under a Creative Commons Attribution-Share Alike 3.0 License (http://creativecommons.org/licenses/by-sa/3.0/) May 14, 2010 The Provenance Vocabulary 10

Idea for a Mapping to OPM <> wasGeneratedBy(prv:DataCreation) _:b wasGeneratedBy(prv:retrievedBy) or better used(prv:usedData) wasGeneratedBy(prv:DataAccess) ? used(prv:usedGuideline) wasControlledBy(prvTypes:DataCreatingService) _:a wasControlledBy(prv:DataAccessor) or better or better wasControlledBy(prv:performedBy) ? wasControlledBy(prv:performedBy) ? ex:triplify wasControlledBy(prv:DataProvidingService) or better myfoaf:olaf wasGeneratedBy(prv:DataCrea wasControlledBy(prv:accessedService) ? wasControlledBy(prvTypes:DataCreatingEntity) May 14, 2010 The Provenance Vocabulary 11

Brief Introduction to the Provenance Vocabulary (for W3C prov-xg)

by Olaf Hartig

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