Introduction to the Open Provenance Model (OPM) from Luc Moreau, University of Southampton.
Came out of a series ‘provenance challenges’ – driven by a desire to understand provenance systems. First 3 provenance challenges (around interoperability of provenance information from different systems) led to the OPM, which became the basis of a further challenge event.
OPM is ‘annotated causality/dependency graph – directed, acyclic’ – it is an abstract modle with serialization formats to XML and RDF. It encourages specialisation for specific domains through profiles.
A simple use case inspired by Jeni Tennison blogpost http://www.jenitennison.com/blog/node/133 [worth reading to look at practical application of provenance in RDF]
Lots of detail here that I didn’t get – need to go and read http://openprovenance.org/
OPM itself doesn’t say anything about aggregations – but using OPM it is possible to build an ontology that expresses this – there is a draft proposed collection profile – but needs more work.
Some work around being able to add a digital signature to provenance information – to validate it as from a specific source/person.
… at this point I’m afraid the 5am start got to me and I didn’t manage to capture the rest of this presentation 🙁
Some pointers
- OPM Specification 1.1 http://eprints.ecs.soton.ac.uk/21449
- A tutorial at http://openprovenance.org/tutorial