ead xml search at the library of congress
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EAD XML Search at the Library of Congress
Mary A. Lacy,Manuscript Division, Library of Congress
Michael Ferrando,Information Technology Services, Library of Congress
August 11, 2010
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Why a new finding aids search system?
Older production system failing (size and number of finding aids)
Updated presentation needed to meet researcher and staff needs and expectations
Better platform to support links to digitized content
Decision to integrate finding aids and LC Online Catalog into LC XML data store
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Application Decisions
Native XML data store platform for search, display, storage (eXist)
XQuery, JQuery, Java, and XSLT for search and display
EADs wrapped in METS objects, pulling data from finding aids and bibliographic/holdings records
Closer integration of EAD and LC Online Catalog EAD controlaccess terms updated weekly from Catalog exports of associated collection‐level records
Addition of LCCN Permalinks to EADs
Hyperlinks from EAD index terms and LC Online Catalog
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Design Decisions
Consult special collections reference staff, archival catalogers, Web design staff
Implement keyword searching across all finding aids as well as within a single finding aid (KWIC for both)
Define requirements for full displays, browse lists, results list, URLs, including “you are here” anchors
Incorporate HTML meta tags (DC and MODS) to support web citation
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Where We Started
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Where We Are Now
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Where We Are Now
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Where We Are Now
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Search Finding Aids Page
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Browse List
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Keyword Search Options
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Keyword Search Results
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EAD Full Display: Overview Tab
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EAD Full Display: Search Results Tab
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EAD Full Display: Contents List Tab
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EAD Full Display: Contents List Tab
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EAD Full Display: Digitized Content Links
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EAD Full Display: Index Terms Tab
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Index Terms to “All Finding Aids” Browse
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Browse List Search Results
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Index Terms to LC Online Catalog Browse
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EAD Full Display: Print/Download Tab
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Workflow Steps Needed
Convert from EAD DTD to EAD schema
Determine “marc”dmdSec structure and metadata (from EAD, LC Online Catalog, boilerplate)
Refresh controlaccess from weekly LC Online Catalog exports
METS creation (including building structMap identifiers and various dmdSec’s)
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LC EAD METS Object
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LC EAD METS Object: structMap
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LC EAD METS Object: structMap
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METS dmdSec id=“marc” Mapping
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Challenges
Limited support for eXist (security issues, indexing, memory, and database configuration)
Limited training and support for XQuery
Complicated finding aid display issues
Revision of LC web page templates to accommodate EAD’s XQuery/JQuery displays
Revision of bibliographic and holdings records to improve linking and browse lists
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Integration into New LC XML Data Store
EAD finding aids and LC Online Catalog records will be merged into a single search and display application in LC XML data store using Mark Logic (beta release, fall 2010)
EAD finding aids will follow design principles and displays from stand‐alone search application
Stand‐alone application will continue
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Future Enhancements
Better integration with digitized archival content (sample items, full gallery views, page‐turners)
Search enhancements based on user feedback
Improved PDF versions
Distribution of EAD METS objects
LC EAD RSS feeds
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Finding Aids: XML Source Files
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Questions?
General question?
Contact Mary Lacy ([email protected])
Technical question?
Contact Mike Ferrando ([email protected])
Watch for announcements by
September 2010!