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Organized Organized Digital Library Development Digital Library Development … … from the Bottom Upfrom the Bottom Up
University of Alabama Libraries
Jody L. DeRidderJody L. [email protected] [email protected]
Image courtesy of Life Magazine
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Libraries organize information… primarily books.
Trinity College Library, Dublin, as captured by Candida Höferin her book Libraries (Thames and Hudson ,UK: 2005).
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Photo credit: Flickr user "Libby", used with permission (creative commons)
If libraries organize books… Why not digital files??
It’s all information!
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A digital object may belong in MANY potential virtual collections…
… but it originated from ONE SINGLE ANALOG collection. Provenance trumps all!
Slavery African Americans Sheet Music Tombigbee River Southern History … and more
“Gum Tree Canoe,” Published by G.P. Reed (Boston: 1847). Wade Hall collection of Southern History and Culture, Hoole Special Collections, University of Alabama Libraries.
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Bringing Order to Chaos
University of Alabama Libraries
Holder ID: u0003
Collection ID: 0000023
Item ID: 0000007
Sequence ID: 0005
Archival File: u0003_0000023_0000007_0005.tif
1) Clarity
2) Low cost
3) Simple
4) Extensible
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u0003_0001980_0000001 is the first digitized item in the MSS 1980 collection
HOLDER ID
COLLECTION ID
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The Digitization Working Area…
Collection folders are named for the collection identifier. Allowed subfolders include:
Admin Metadata Scans Transcripts
Compound objects have their own subfolders for pages, named for the item.
And a Collection Folder in the Working Area
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Bringing Content Up to the Level Of the WEB!!! Greater Usability and Access == Longer Life
Images … ImageMagick: http://www.imagemagick.org(it’s free!)
Protected archive area
u0003 u0003
0000023 0000023
0000007
0005
u0003_0000023_0000007_0005.tif
0000007
0005
Thumb and large-size derivatives
Web accessible area
Audio … LAME: http://lame.sourceforge.netOCR … TESSERACT: http://code.google.com/p/tesseract-ocr/
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u0003 slide
Identification, Organization and Consistency
Each segment of numbers:
Holder ID Collection ID Item ID Sequence ID
is used in the directory structure.
The directory for u0003_0000003_0002_001.tif
Is simply:
u0003/ 0000003/ 0002/ 001/
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Dropping the Technical Metadata in… where it belongs
Makes METS creation a Piece of Cake!
(and redundant!)
Using FITS, the File Information Tool Set developed by Harvard which encapsulates JHOVE, DROID, ExifTool and other tools: http://code.google.com/p/fits/
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An Example of the Lowest- Cost Model: The Alabama Digital Preservation Network http://www.adpn.org/
http://www.lockss.org/
Lots of Copies Keeps Stuff Safe!!
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storage area
Simple, Clear Hierarchical Organization:
Holder ID Collection ID Item ID Sequence ID
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http://acumen.lib.ua.edu
ACCESS! Via Acumen
(also free!)
XML agnostic No ingest No metadata modifications All content easily accessible Open to search engines
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Now it’s organized. But can users find what they need?
Trinity College Library, Dublin, as captured by Candida Höferin her book Libraries (Thames and Hudson ,UK: 2005).
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Usability Testing
* U=Undergraduate, G=Graduate Student, PG=Post graduate volunteer, S=University staff
Participant Number 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20 21
Educational Status* G G U G G G S G U G U U U U U U PG
G G G
Educational Background in
History
X X X X X
Previous Special Collections Experience
X X X X X X X X X X X X
Previous Digital Collections Experience
X X X X X X X X X X X X X X X X X
English as a Second Language
X X X X X
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http://transcribe.lib.ua.edu
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http://tagit.lib.ua.edu
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http://tagit.lib.ua.edu
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S. R. Ranganthan (1931), paraphrased:
Information is for use.Information is for use.
Every user his / her information.
Every information its user.
Save the time of the user.Save the time of the user.
The library is a growing organism.The library is a growing organism.
Remember why we’re here…
Image: jscreationzs / FreeDigitalPhotos.net