subtitel arial 32 cursief in onderkast

OAIS compliant

preservation workflows

In an AV-production archive

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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

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

Digital risks

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- How to ensure digital material stays accessible?

- IT-technology changes rapidly

- Impact of failure is huge

Digital preservation

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- Solution: long-term digital preservation

- Strategic goal: become a TDR

- Project for preservation workflow policies

Digital Object management

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- Digital Object Management requirements:

- Preservation metadata dictionary

- Preservation workflow model

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.

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

Preservation metadata

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Preservation metadata

Technical metadata

Provenance metadata:

Events and Agents

Event Agent

Rights metadata

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

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

The archival object: AIP

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To storage location

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

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?

Important findings

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Learning, communication and

collaboration

- Everyone should know their role and responsibility

- A common reference framework is important

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

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?

Project achievements

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- A foundation for digital lifecycle management

- Information model (preservation workflows)

- Preservation metadata dictionary

- Submission/Order Agreement guidelines

- Description Designated communities

Project achievements

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- 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

Any questions?

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?