presentation 16 may casestudy daniel steinmeier
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subtitel arial 32 cursief in onderkast
OAIS compliant
preservation workflows
In an AV-production archive
17-5-2013
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Sound and Vision
800.000 hours of Dutch television, film, radio and music
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AV-production archive
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National heritage archive
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Photo collection
Documentaries
Amateur film
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Digital collection facts
Thousands of hours added per year
6 petabytes of broadcast material
Hundreds of users served every day
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Automated digital workflow since 2007
6 petabytes of digitised analog material
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Digital risks
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- How to ensure digital material stays accessible?
- IT-technology changes rapidly
- Impact of failure is huge
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Digital preservation
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- Solution: long-term digital preservation
- Strategic goal: become a TDR
- Project for preservation workflow policies
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Digital Object management
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- Digital Object Management requirements:
- Preservation metadata dictionary
- Preservation workflow model
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OAIS
ISO 14721: functional model
ISO 16363: guidelines for certification
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An OAIS is an Archive […] that has accepted the responsibility to preserve information and make it available for a Designated Community.
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Key concepts for preservation
- Usability: Keeping the data readable for the designated
community
- Integrity: Keeping data from corruption:
technical properties, fixity checking
- Authenticity: audit-trail of actions within the digital lifecycle
in preservation metadata
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Events and provenance
- Provenance metadata is a collection of Events
- Events: defined actions with Agent and Outcome saved as metadata
- Provenance metadata shows the history of the object
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Preservation metadata dictionary
- PREMIS as basis for provenance metadata and rights
- Technical metadata for audio, video and still images
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Pixel width
Pixel height
Aspect ratio
Video codecColor space
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Preservation metadata
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Preservation metadata
Technical metadata
Provenance metadata:
Events and Agents
Event Agent
Rights metadata
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OAIS processes: the IP-lifecycle
A Producer provides a Submission Information Packagein accordance with Submission
Agreements
The Archive stores the Archival Information Package
The Designated Community requests a Dissemination Information Package in accordance with Order Agreements
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Digital Object + metadata = Information Package
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What is in a SIP?
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The Ingest-workflow: SIP
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ingestViruscheck
Fixitycheck
Filecharacterisation
SAvalidation
Qualityanalysis
Every action adds provenance metadata to the IP
metadata metadata metadata metadata
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The archival object: AIP
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To storage location
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The access workflow: DIP
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RequestAuthentication
check
Request
same as
AIP?
Copy file Fixity check
Createnew file
Deliver DIP
metadata added to AIP
metadata added to AIP
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Object management within OAIS
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Important findings
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Synchronizing theory with practice
- The OAIS model needs to be tailored
- Acquiring a Media Asset Management-system (MAM)
- Workflow policies or technical requirements?
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Important findings
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Learning, communication and
collaboration
- Everyone should know their role and responsibility
- A common reference framework is important
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Important findings
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Preservation from an organizational
viewpoint
- No single IT-application can meet all functional
requirements
- Overview of all actions and processes within the archive
- Preservation is more than just digital technology
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Questions that remain
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- What are the cost implications?
- Which collections need to be preserved?
- What to do with digitized legacy material?
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Project achievements
17-5-2013
- A foundation for digital lifecycle management
- Information model (preservation workflows)
- Preservation metadata dictionary
- Submission/Order Agreement guidelines
- Description Designated communities
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Project achievements
17-5-2013
- Technical requirements for Digital Object Management
- Greater awareness that digital lifecycle management
involves all archive departments
- A basis for certification for Data Seal of Approval
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Any questions?
17-5-2013
?