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Life After MARC A Metadata Infrastructure for the 21st Century. Roy Tennant. Non-ILS Metadata Systems. Electronic research databases. Institutional Repositories. Silos Everywhere!. Archival Systems. Digital Library Collections. Pathfinders. Infrastructure Requirements. Versatility
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Life After MARCA Metadata Infrastructure for the 21st Century Roy Tennant
Non-ILS Metadata Systems Electronicresearchdatabases Institutional Repositories Silos Everywhere! Archival Systems DigitalLibraryCollections Pathfinders
Infrastructure Requirements • Versatility • Extensibility • Openness and Transparency • Low Threshold, High Ceiling • Cooperative Management
Infrastructure Requirements • Modularity • Hierarchy • Granularity • Graceful in failure
A Proposal • Create a new bibliographic metadata infrastructure with the following characteristics…
A Transfer Schema • An XML schema for ingesting, storing, and transferring multiple bibliographic metadata packages intact • A current example: the Metadata Encoding and Transfer Syntax (METS) [ demo ]
MARC ONIX DublinCore VRACore
METS MARC ONIX DublinCore VRACore
Bibliographic Schemata • We must be able to use a wide variety of metadata: • MARC records from libraries • MODS records from libraries and others • ONIX records from publishers • Dublin Core records from OAI repositories • VRA Core records from museums • etc.
Application Rules • The “AACR2” of our new infrastructure • Rules and guidelines for use: • General application rules • Schema-specific rules
Best Practices • Implementation practices — “on the ground” rules of thumb and procedures • Everything should not be codified in application rules — room should be allowed for experimentation • In these “gray areas” best practices can suggest non-prescriptive and reasonable sets of procedures
Crosswalks • Librarians should be able to deal with metadata of many varieties • Proficiency will require crosswalks, or algorithms for translating metadata from one schema to another • The same infrastructure could be used to merge multiple formats into a searchable index
Enrichment Services • Enriching metadata with additional information • Examples: • Book cover art • Tables of contents • Book reviews • See http://www.loc.gov/standards/catenrich/ for more information
Tool Sets • Tools to help us manage and manipulate metadata • Examples: • XSLT Stylesheets • Crosswalking code (e.g., OCLC’s Metadata Switch service) • OCLC’s FRBR algorithm
Relationships to Other Standards and Protocols • A rich metadata infrastructure will interoperate with a wide range of standards and protocols • Examples: • OAI-PMH • SOAP (REST)
Challenges • Adapting to a diversity of record formats • Crosswalking and Merging • System migration • Staff retooling • Your favorite challenge here…
Making the Transition • Any solution will need to accommodate MARC • Some libraries are already leading the way (e.g., OCLC) • Some vendors are already leading the way (e.g., moving to XML-aware database systems) • Initial ILS transition may be mostly transparent (i.e., same functionality, different infrastructure) • The difficulty does not lie with technology, but with people and procedures
Why It Matters • We face many challenges and opportunities • Our once robust metadata infrastructure is now jaded — both conceptually and technically • Our users and the services we wish to provide them demand a metadata infrastructure equal to the tasks before us • We must renew our bibliographic infrastructure!