corporation for national research initiatives dois and the handle system 7 may 1998 larry lannom...
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Corporation For NationalResearch Initiatives
DOIs and the Handle System
7 May 1998
Larry Lannom
CNRI
Corporation For NationalResearch Initiatives
DOIs and the Handle System
DOIs are an application of the Handle System
The Handle System is a distributed computer system for naming digital objects and storing the names and the information that is needed to locate and access these items via the Internet.
Corporation For NationalResearch Initiatives
Digital Object Architecture
Client
Repository / Collections
Resolution System
•Search Engines•Metadata Databases•Catalogues, Guide, etc.
Resource Discovery
Corporation For NationalResearch Initiatives
Handle System Initiatives
IDF (International DOI Foundation) Library of Congress
– National Digital Library Program
– U.S. Copyright Office
NCSTRL (Networked Computer Science Technical Reports Library)
DTIC (Defense Technical Information Center) USIA (U.S. Information Agency) NMPA (National Music Publishers’ Association)
Corporation For NationalResearch Initiatives
Handles Resolve to Typed Data
Handle data
loc.ndlp/amrlp.123456 URLhttp://www.loc.gov/.....
Handle Data type
RAPloc/repository
URLhttp://www.loc2.gov/..
Extensible Data Types XYZ1001110011110
Corporation For NationalResearch Initiatives
HS#n
HS#n
which may be replicated
Handle Resolution
Client
Handle System
GHS
LHSLHS
LHSLHSLHS
is a collection of Handle Serviceseach of which consists of one or more Handle Servers
HS#1
HS#2
HS#3
HS#n
http://www.loc.gov/.....loc.ndlp/amrlp.123456 URL
URLhttp://www.loc2.gov/.....
Corporation For NationalResearch Initiatives
Handle Clients
Handle Resolution
Web Browser Web Browser
Handle Administration
Handle System
GHS
LHSLHS
LHSLHS
GHS
LHSLHS
LHSLHSLHS
Corporation For NationalResearch Initiatives
Handle ClientsWeb Browser
Proxy
Web Server
HTTP Get
Resolve HandleHandle Data
HTTP Redirect
Handle System
Handle Administration
http://dx.doi.org/10.1015/123456
GHS
LHSLHS
LHSLHS
GHS
LHSLHS
LHSLHSLHS
Handle Resolution
Web Browser
Corporation For NationalResearch Initiatives
Handle ClientsWeb Browser Web Browser
Handle Administration
Handle System
Browser Extension
Resolve Handle Handle Data
hdl:10.1015/123456
Handle Resolution
GHS
LHSLHS
LHSLHS
GHS
LHSLHS
LHSLHSLHS
Corporation For NationalResearch Initiatives
Local Resolution of Global Ids
Web Browser
Local Client
Local collection
Global Resolution System
hdl:10.123/456
hdl:10.123/456
10.123/456 = http://local/abc.html
redirect - http://local/abc.html
http://local/abc.html
www.pub.com
Local Network/Environment(Harvard)
Cache/Proxy
Corporation For NationalResearch Initiatives
Local Resolution of Global Ids
Web Browser
Local Client
Local collection
Global Resolution System
hdl:10.789/abc
hdl:10.789/abc
http://www.pub.com/abc.html www.pub.com
hdl:10.789/abc
http://www.pub.com/abc.html
abc.html
Cache/Proxy
?
Local Network/Environment(Harvard)
Corporation For NationalResearch Initiatives
WebBrowser
Local Client
Local collection
Local Network/Environment(Harvard)
Cache/Proxy
hdl:10.123/456
hdl:10.123/456
redirect - http://IV/abc.html
http://IV/abc.html
Cache/Proxy
Local Network/Environment(Ivy League)
www.pub.com
Local Resolution of Global Ids
Global Resolution
System
Corporation For NationalResearch Initiatives
http://dx.doi.org/10.123/456
hdl:10.123/456
urn:hdl:10.123/456
Handle Record Client Representation
urn:hdl:10.123/%E6%97%A5%E6%9C%AC
hdl:10.123/%E6%97%A5%E6%9C%AC
Handle Syntax and I18N
10.123/456 URL http://pub.com/doc.html
http://10.123/%E6%97%A5%E6%9C%AC
10.123/ URL http:/ietf.org/japan.html
hdl:10.123/ (UTF-8 Encoding)
Corporation For NationalResearch Initiatives
Http://www.pub1.com/1b/
Electronic version ofJournal of New Physicspublished by Famous Science Publishing Co.
Handle Data and Metadata
DOI: 10.XXXX/1234URL: http://www.pub1.com/1b/JN: Journal of New PhysicsTI: New HorizonaAU: Bill SmithPG: 786-980AB: Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diem nonummy nibh euismod.Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diem nonummy nibh euismod
Metadata Collection and DOI Registration
Corporation For NationalResearch Initiatives
WholesaleMetadataCollection
Metadata
Handle System
Handle Data
Other Data Services
Handle data and metadata
Metadata Collection and DOI Registration
CollectionService
CollectionService
•Indexes•Filters•Queries
VARs
Corporation For NationalResearch Initiatives
WholesaleMetadataCollection
Metadata
Handle System
Handle Data
Other Data Collectors
Handle data and metadatarecords
Publisher 1
Publisher 2
Publisher 3 Publisher n
Metadata Collection and DOI Registration
CollectionService
CollectionService
•Indexes•Filters•Queries
VARs
Corporation For NationalResearch Initiatives
Client
Handle System
Value AddedResellers
Publisher 1
Publisher 2
Publisher 3 Publisher n
Publisher Collections
Digital Object Architecture