digital initiatives digital initiatives at the national library of wales 19 th april 2007 paul bevan...
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Digital initiatives
Digital Initiatives at the National Library of Wales 19th April 2007
Paul Bevan
Digital initiatives
Overview
• Collecting for the Library• Policies• Strategies• Frameworks for Digitial Initiatives
– DAMS– OAIS & METS– Object Models– Workflows
• The Way Ahead
Digital initiatives
Collecting Digitally
• Remit:
To collect, preserve and give access to all kinds and forms of recorded knowledge, especially relating to Wales and the Welsh and other Celtic peoples, for the benefit of the public including those engaged in research and learning.
Digital initiatives
Digital for Access
• Wider Community
• At Home, At School, At Work
• Open Access
• VLEs
• New Ways of ‘Thinking About’ Resources
Digital initiatives
Digital for Preservation
• Safeguarding the Original
• Digital Preservation Copy
• Backups
• But, shift in emphasis (preservation of the digital surrogate).
Digital initiatives
Digital Policies
• Digitisation Policy
Why Digitise?• Access (Physical Distance, Number of Users)
• Enhance (Full-Text, e-Learning Environmnets, Virtual Collections)
• Preservation• Promotion• Revenue Generation
Digital initiatives
Digital Policies
• Digital Preservation Policy– Support Digitisation– Prepare for Legal Deposit Legislation– Identify & Prioritise Existing Material Within
Collections– Evolve Best Practices– Create/Implement Tools as Required
Digital initiatives
Digital Strategies
• Digitisation Strategy
– Define projects/programmes– Digitise Material According to a Selection
Matrix– Collaborate with other Organisations– Seek User Feedback
Digital initiatives
Digital Strategies
• Digital Preservation Strategy
– Identify Existing Digital Assets– Prepare for Expected Material Types– New Ways of Collecting E-Material (eg.
Online Self Deposit)– Build and Implement Infrastructure– Collaborate with other Organisations
Digital initiatives
‘Frameworks’ for Digital Initiatives
An institutional approach bringing together all of the processes of digitisation, digital collection and digital asset management.
• Digital Asset Management System• OAIS• METS• Content Models• Workflows
Digital initiatives
A DAMS for NLW
• Consultancy Review & Pilot Project
• Procurement as part of Integrated Library Management System.
• Key Goals:– Ingest, manage and disseminate objects
– Support current and future digitisation, digital archiving and digital collection projects.
– Achieve seamless integration
– Provide a platform for future dissemination methods
– Open access to our digital data, within a rights-managed environment.
Digital initiatives
About VITAL
• Product of VTLS Inc.– Based on FEDORA (Open Source, Increasing Uptake, Flexible & Extensible)
– Client– Access Portal– VALET– Handle Server
• Allows the flexibility of Open Source within a managed and supported framework.
• Certain Developments Required– Shift to Fedora 2.1 (complete)– Integration (Authentication)
Digital initiatives
Approach
• Object Review (complete)
• Prioritisation (Digitised Still Images) (complete)
• Defining Object Types (complete)
• Make existing Digital Archive accessible (complete)
• METS (complete)
• Develop Ingest Processes (complete)
• Develop Management Processes (eg. Checksumming) (complete)
• Testing and Final Ingest (current)
Digital initiatives
Object Classes• Class 1
– 1 MARC Record– 1 Image– No METS
• Class 2– 1 MARC Record– Many images– No METS
• Class 3– 1 MARC Record– Many Images– 1 METS for each Record
• Class 4– 1 MARC Record– Many Images– Many METS
Digital initiatives
Next Steps
• Further Object Types:• Other Digital Still Images(CNC)• Audio-Visual Resources (inc. off-air)• ePrints• Digital Archives• Self-Deposit• Websites
• More Varied Disseminations:• Project/‘Exhibition’ websites• Interactivity• Preservation Tasks
OAIS
METSMETS
METS
METS
Digital Archive
Virtua
VITALDisseminators
MARCMARC
Digital initiatives
AIP (METS)• METS Header:
– History of METS document • Descriptive Meta Data
– mods on digital copy – link to dc for original – premis details on original file name – relationship information to other objects in Fedora
• Administrative Meta Data – mix technical meta data on images – dc legacy technical data – premis admin data including checksums, and relationships between data streams – link to MARC record in Virtua
• Digital Providence – List of actions that have occurred to the object – List of agents who ran the software / versions of the software used
• File Sec – List of Data streams linking above sections to particular data streams
• Structural Map – First one allows display via a METS viewer type application – Subsequent ones are linked to Disseminators
• Behaviour Section – Links objects to their dissemination
Digital initiatives
METS: Rights-Access
• METS = Policy, DAMS = Enforcement• DAMS uses XACML (eXtensible Access Control Markup Language) to
enforce rights on one or a group of objects within the repository. Rights are based on XACML statements constructed from the METS:Rights from METS document.
• Example Policies:Repository-wide Policy• Deny access to the deleteDatastream method of API-M if user is not “author”
Object-specific Policy• Deny all access to the object “llgc:100” if user is a not located within Wales.
Genre-oriented Policy• Given that an object conforms to the content model type of “journal-article,” deny access to the “getFullArticle” if
the user is not in the group “registered”
Time-oriented Policy• Permit users access to “embargoed” datastream of digital archival collection after January 06, 2009
Content Model: Object (AIP)• All Objects must Contain
• METS DS• DC DS (OAI-PMH)• Relationships DS
• Objects below collection level must contain
• Object Files (!)
DS: METS
DS: DC (OAI-PMH)
DS: Relationships
DS: Object (eg. TIFF File)
DS: Object (eg. JPEG File)
DS: Object (eg. Thumbnail File)
….
Referenced
Referenced
Referenced
Near-LineTape Store
Fast Image Server
Example Object (Digitised Still Image)
Digital initiatives
Content Model: BookBook-Level Object
llgc:001
DS1: METSDS2: DCDS3: Rels-Ext
Page-Level Object
llgc:002
DS1: METSDS2: DCDS3: Rels-ExtDS4: Archive ImageDS5: Reference ImageDS6: Thumbnail Image
Page-Level Object
llgc:003
DS1: METSDS2: DCDS3: Rels-ExtDS4: Archive ImageDS5: Reference ImageDS6: Thumbnail Image
Page-Level Object
llgc:004
DS1: METSDS2: DCDS3: Rels-ExtDS4: Archive ImageDS5: Reference ImageDS6: Thumbnail Image
Is part of Is part ofIs part of
Relationships can exist one-way but are identifiable from both levels
Digital initiatives
Content Model: Collection (Admin)
Page-Level Objectllgc:002
DS1: METSDS2: DCDS3: Rels-ExtDS4: Archive ImageDS5: Reference ImageDS6: Thumbnail Image
Book-Level Objectllgc:001
DS1: METSDS2: DCDS3: Rels-Ext
Is part of
Note: Levels are arbitrary
Book-Level Objectllgc:011
DS1: METSDS2: DCDS3: Rels-Ext
Page-Level Objectllgc:014
DS1: METSDS2: DCDS3: Rels-ExtDS4: Archive ImageDS5: Reference ImageDS6: Thumbnail Image
Is part of
Collection-Level Object:Jpeg File DataStreamsllgc:100
DS1: METSDS2: DCDS3: Rels-Ext
Is part of
Is part of
Is part of
Is part of
Digital initiatives
Vital
Digital initiatives
Integrated Content
Digital initiatives
Digital Collection Project Framework
• Off-Air Recording
– NSSAW Archive records all Welsh broadcasts from TV & Radio
– Traditionally Analogue, recently procured a digital solution
– Ingest of Digital Files & Metadata into Virtua/Vital system automatically
– Dissemination through individual MPEG2 Broadcast Streams
Digitisation Project
Framework
Fedora Object
METSDC (OAI-PMH)RELS-EXT (Relationships)
JTH00469_t.jpg (Thumbnail)JTH00469.jpg (Reference)jth00469.tif (Archive)offsite-jth00469.tif (Offsite)copperRoom-jth00469.tif (Copper)
Fedora Object
METSDC (OAI-PMH)RELS-EXT (Relationships)
JTH00469_t.jpg (Thumbnail)JTH00469.jpg (Reference)jth00469.tif (Archive)offsite-jth00469.tif (Offsite)copperRoom-jth00469.tif (Copper)
Fedora Object
METSDC (OAI-PMH)RELS-EXT (Relationships)
JTH00469_t.jpg (Thumbnail)JTH00469.jpg (Reference)jth00469.tif (Archive)offsite-jth00469.tif (Offsite)copperRoom-jth00469.tif (Copper)
Fedora Object
METSDC (OAI-PMH)RELS-EXT (Relationships)
JTH00469_t.jpg (Thumbnail)JTH00469.jpg (Reference)jth00469.tif (Archive)offsite-jth00469.tif (Offsite)copperRoom-jth00469.tif (Copper)
Fedora Object
METSDC (OAI-PMH)RELS-EXT (Relationships)
JTH00469_t.jpg (Thumbnail)JTH00469.jpg (Reference)jth00469.tif (Archive)offsite-jth00469.tif (Offsite)copperRoom-jth00469.tif (Copper)
Fedora Object
METSDC (OAI-PMH)RELS-EXT (Relationships)
JTH00469_t.jpg (Thumbnail)JTH00469.jpg (Reference)jth00469.tif (Archive)offsite-jth00469.tif (Offsite)copperRoom-jth00469.tif (Copper)
Ohio Collection
METSDC (OAI-PMH)RELS-EXT (Relationships)
METS ExtractDisseminator
Generate DIP
Ohio Website
Built on METS documents
Digital initiatives
The Way Ahead
• A framework which supports– Digital Collection– Digitisation
• A framework which enables– Digital Preservation– Full Asset Management
• A framework which encourages– New methods of access– Open conduits to materials (eg. Mashups, etc)
Digital initiatives
SMIL Presentation
Google Maps
Digital initiatives
CHE
• Improving Access to Data
• Release of One Collection for Reuse
• Working alongside users & other organisations
Digital initiatives
Paul Bevan – [email protected]