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Infusing Hydra with digital preservation capabilitiesOptions and DirectionsChris AwreHead of Information Services, University of HullHydra Steering GroupPASIG, Prague, 11th March 2016
Hydra
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RepositorysolutionsCommunity-driven
Open sourceTechnicalframework
Fundamental Assumption #1No single system can provide the full range of repository-based solutions for a given institution’s needs,
…yet sustainable solutions require a common repository infrastructure.
No single institution can resource the development of a full range of solutions on its own,
…yet each needs the flexibility to tailor solutions to local demands and workflows.
Fundamental Assumption #2
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Fedora and Hydra
Storage
Fedora
HydraHydra provides user interfaces and workflowsover the repository – a complete solution
Concept of multiple Hydra ‘heads’ over singlebody of content
Hydra
Hydra Hydra
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The content is stored either locally or inthe Cloud
Fedora is the digital repository system,holding the content in a structured way
A Worldwide Presence
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Hydra Heads of Note
Avalon & HydraDAM for Media
Sufia
BPL Digital Commonwealth
UCSD DAMS
See a full list at:https://wiki.duraspace.org/display/hydra/Partners+and+Implementations
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Hydra and digital preservation
• Hydra Digital Preservation Interest Group
• Linking Hydra to digital preservation tools/services– Archivematica– Archivesphere
• Embedding preservation metadata within Hydra– Expanding PCDM– Making sense of Premis
• Hydra as component of digital preservation infrastructure– Royal Library of Denmark– LSE
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Hydra and Archivematica
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Archivesphere
• A project from Penn State University to extend their Scholarsphere/Sufia Hydra head to include preservation actions– Format migration– Embedded FITS
• Dilemma of what to include and what not to include– Don’t want to re-invent the wheel
• Hydra DP Interest Group project on preservation actions– Identifying what may best sit within Hydra and
what best sits elsewhereInfusing Hydra with digital preservation capabilities | 11 March 2016 | 9
Using PCDM to capture digital preservation
• PCDM – Portland Common Data Model– Common way to structure digital objects in a
repository– How can this be expanded to include digital
preservation information?– Hydra DP Interest Group project to identify how
to extend PCDM for digital preservation
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Making sense of Premis
• How can Hydra make effective use of Premis data dictionary?
• Hydra DP Interest Group project exploring options– Building on experience to date from across the
Hydra community– Focus on practical mechanisms, not assessing
which parts of Premis should or should not be used• Initial interest in Premis events
• Interest in Premis OWL ontology given Fedora 4 use of RDF
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Royal Library preservation infrastructure
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LSE – digital preservation at institutional level
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In summary
• Hydra has the flexibility to embed digital preservation capabilities in a number of ways
• Community is in the process of finding its way with identifying best practice– Building on lots of local experience and initial
implementations– Extending community initiatives, not re-inventing
the wheel• Building on and enabling Fedora’s underlying
support of durability
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Links
• Fedora– http://fedorarepository.org/
• Avalon– http://www.avalonmediasystem.org
• Sufia example (Penn State Scholarsphere)– https://scholarsphere.psu.edu/
• University of California San Diego digital collections (including datasets)– http://library.ucsd.edu/dc/
• Boston Public Library– https://www.digitalcommonwealth.org/
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Links 2
• Hydra and Archivematica– https://www.york.ac.uk/borthwick/projects/archiv
ematica/• Archivesphere– https://github.com/psu-stewardship/archivesphere
• PCDM– https://github.com/duraspace/pcdm/wiki
• Royal Library– https://wiki.duraspace.org/download/attachments/
68060688/Digital%20preservation%2C%20LSE%2020150423.pptx?version=1&modificationDate=1430382021721&api=v2
Library system review – Koha | 8 November 2013 | 17
