Download - Central Registry for Digitized Objects: Linking Production and Bibliographic Control (2007)
Central Registryfor Digitized Objects:
Linking Production andBibliographic Control
Ralf StockmannGöttinger Digitization Center
As things are now
• Huge ventures in– Digitization
• Google• Microsoft• National programs• Local centers
– Accessibility• World Digital Library• European Digital Library• National portals• Google Book Search
As things are now
• We just face the dawn of mass digitization– Leaving behind the state of
manufacturing– Entering industrialization– Scanning Robots– Accessible Full Text (OCR)
Lack of …
• Coordination in digitization activities– Who scans what
where when in which quality and how will it be accessible
• How is “quality” defined?
• Do we agree on “what”?
Number of digitized items per volume
Co
sts
/ Val
ue Waste of Ressources
Facing the Consequences
Costs
AdditionalBenefit
TechnicalImprovements
The Solution• Central registry for digitized objects• Focused on the production context (no user
frontend)• API driven
– Application Programming Interface– Query / Ingest– Simple implementation into existing workflow-tools
• Batch mode (lists)• Open Source / free service• Matching on volume level
– Score / probability
Implementation
? ? ?
APIAPI
Aggregator / Normalizer / MappingAggregator / Normalizer / Mapping
Registry / Meta Data StoreRegistry / Meta Data Store
IngestIngest
Present Collections
QueryQuery
IngestIngest
Running Project
! ! !Notice of Intent
IngestIngest
Backend ServicesEROMM / EDL / OCLC / …
Backend ServicesEROMM / EDL / OCLC / …
Metadata Store• Bibliographic
– Title– Author– Date– Place of publication– Number of Pages (?)– Language– Print / Format– Edition
• Technical– Resolution– Color depth– File type / compression
• Accessibility– Institution– Persistent identifier– Rights– URL
• Status– Digitized– In Progress– Intended (Timeline?)– Requested?
Matching / Score„what“
Additional Judging„who, where, which quality, how accesible“
Decisive Factor„when“
Obstacles• (open source) Tools for automated matching /
scoring?• Interface for manual comparison / decision making• Multivolume works: low rate of uniformity (near
50% of physical SUB stock before 1900)• Unicode• Transliteration tables• Random bound books• Reliable identifier
– ISBN for old books?
• Anticipated rate of accuracy: 50 – 70 %
Appreciation of Values• The goal is NOT to build a reliable database in terms of
library standards
• But to prevent further waste of resources.
• If we manage to archive just 50% precision,
• We saved a min. 50% of founding!
Work Packages• Define metadata model• Set up database• Implement mapping tools• Define API calls• Implement API• Build some connectors to popular mass digitization workflow
tools (e.g. “Goobi”)• Establish ISBN workflow• Harvest existing sources• Start with a community of actual projects
• Get some (!) founding• Estimated schedule plan: 6 months
Thank You([email protected])