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November 6, 2002Edward A. Fox, Virginia Tech3 Research in a Nutshell We build extensible modular systems with customizable services. This supports interoperability and allows distributed development. This is in use in AmericanSouth.org, … Components include search, browse, annotate, editorial support, union, filter, whats-new, submit, rate, recommend, …
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Open Digital Libraries
Edward A. FoxVirginia Tech, Dept. of Computer Science
November 6, 2002 Edward A. Fox, Virginia Tech 2
Thesis Statement• Open Digital Libraries (DLs)• Open Archives Initiative (OAI)• Protocol for Metadata Harvesting (PMH)• Extending OAI-PMH provides the glue
for building componentized DLs.• Lightweight protocols connect the
components to support modular systems with good efficiency.
November 6, 2002 Edward A. Fox, Virginia Tech 3
Research in a Nutshell• We build extensible modular systems
with customizable services.• This supports interoperability and allows
distributed development.• This is in use in www.cstc.org,
AmericanSouth.org, www.citidel.org, …• Components include search, browse,
annotate, editorial support, union, filter, whats-new, submit, rate, recommend, …
November 6, 2002 Edward A. Fox, Virginia Tech 4
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users digital objects
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November 6, 2002 Edward A. Fox, Virginia Tech 5
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November 6, 2002 Edward A. Fox, Virginia Tech 6
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open digital library
OA OA
OA
OA
OA
OA
OA
OA
OA
PMH
PMH
XPMH
XPMH
XPMH
XPMH
XPMH
XPMHXPMH
XPMH
XPMH
XPMHXPMH
November 6, 2002 Edward A. Fox, Virginia Tech 7
Open Digital Library Component
Extended OPEN ARCHIVE
OPENARCHIVE
November 6, 2002 Edward A. Fox, Virginia Tech 8
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ETD-1
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ETD-2
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ETD-3
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ETD-4
Digital Library for the Networked Digital Libraryof Theses and Dissertations (www.ndltd.org)
Search
Filter
Filter
Union
Recent
Browse
PMH
PMH
PMH
ODLRecent
ODLBrowse
ODLUnion
ODLUnion
ODLSearch
ODLUnionPMH
PMH
USER
INTER
FAC
E
Students and researchers
ETD collections
Example Open Digital Library
November 6, 2002 Edward A. Fox, Virginia Tech 9
DBReviewBox:Reviews
USER INTERFACE
Box:Resources
under Review
DBUnion:Metadata
UnionUser InterfaceOAI/ODL componentOAI/ODL protocol
Box:Accepted
Resources
IRDB
Box:Users
DBUnion:Legacy
Metadata
Thread
DBRate
Suggest
DBBrowse
Example Open Digital Library
Digital Library for theComputer Science Teaching Center
(www.cstc.org)
November 6, 2002 Edward A. Fox, Virginia Tech 10
Digital Library In A Box• http://dlbox.nudl.org, part of NSF’s
National Science Digital Library (www.nsdl.org), offers “Shrink-wrap” Open Digital Library Components.
• Users install ready-made digital library solutions, or build their own from snap-together components.
November 6, 2002 Edward A. Fox, Virginia Tech 11
Benefit to AOL• AOL could rapidly develop prototypes
for sophisticated systems.• AOL users could do the same.• Such OAI collections could be a new
base of data for AOL services.• AOL could help/encourage its user
community to build their own DLs and to share their data through OAI-PMH.
November 6, 2002 Edward A. Fox, Virginia Tech 12
Contact InformationEdward A. FoxDept. of Computer Science,Virginia
[email protected]: +1-540-231-6075http://www.dlib.vt.edu/
