6. 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
7. Digital risks
17-5-2013
- How to ensure digital material stays accessible?
- IT-technology changes rapidly
- Impact of failure is huge
10. 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.
11. 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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12. 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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13. 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 codec
Color space
15. OAIS processes: the IP-lifecycle
A Producer provides a
Submission Information Package
in 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
19. The access workflow: DIP
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Request
Authentication
check
Request
same as
AIP?
Copy file Fixity check
Create
new file
Deliver DIP
metadata added to AIP
metadata added to AIP
21. Important findings
17-5-2013
Synchronizing theory with practice
- The OAIS model needs to be tailored
- Acquiring a Media Asset Management-system (MAM)
- Workflow policies or technical requirements?
23. Important findings
17-5-2013
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
24. Questions that remain
17-5-2013
- What are the cost implications?
- Which collections need to be preserved?
- What to do with digitized legacy material?
25. 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
26. 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