PERICLES Reflexive LRM

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<ol><li> 1. GRANT AGREEMENT: 601138 | SCHEME FP7 ICT 2011.4.3 Promoting and Enhancing Reuse of Information throughout the Content Lifecycle taking account of Evolving Semantics [Digital Preservation] Jean-Yves Vion-Dury, Xerox Research Centre Europe </li><li> 2. Page 2 Basic Ideas: an OWL ontology to capture ecosystems as evolving linked resources Extensible through domain specific specialisation The model will also serve as a data schema: RDF graph instances stored in triple stores will reflect the evolution of the preserved resources </li><li> 3. Page 3 Key Ideas dependencies may have complex topology dependency are characterized by usage intention resources may be versioned Changes apply both to resources of the ecosystem AND their descriptions Open the way toward reflexive digital preservation </li><li> 4. Page 4 how could we preserve digital materials for the long haul, if the functionalities of the preservation system itself cannot be preserved? Idea: LRM could be used to model the PERICLES preservation systems as a particular collection of digital resources, thus leading to a form of reflexivity Ontological schemas may evolve too: OWL classes and properties can be modelled as particular LRM resources </li><li> 5. Page 6 LRM Top Classes (1) Digital- Resource Dependency ConcreteResource subClassOf disjointWith Resource AbstractResource subClassOf subClassOf subClassOf </li><li> 6. Page 7 LRM Top Classes (2) Description ExogenousResource disjointWith Resource EndogenousResource subClassOf subClassOf subClassOf AbstractResource subClassOf </li><li> 7. Page 8 La Trahison des images (R. Magritte) </li><li> 8. Page 9 </li><li> 9. Page 10 Les deux mystres (R. Magritte) </li><li> 10. 11 NantesTriptych creationTime 1994 </li><li> 11. 12 NantesTriptych creationTime 1994 2015 creationTime </li><li> 12. LRM as a conceptual model Guides the description of ecosystems Offers a clear and precise vocabulary Allows model/instance validation LRM as a Data Model Help managing evolution of the ecosystem Active control over change Action planning Simulation/risk analysis and mitigation Provenance information History / Time machine Help control the evolution of Pericles infrastructure Reflexive modelling </li></ol>