Mirroring Unified Metadata as Solution for the Digital Library Network at Developing Countries Case Study: The Indonesian Digital Library Network Ismail Fahmi < [email protected]> Knowledge Management Research Group Institut Teknologi Bandung Indonesia
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Mirroring Unified Metadata as Solution for the Digital Library Network at Developing Countries Case Study: The Indonesian Digital Library Network Ismail.
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Mirroring Unified Metadata as Solution for the Digital
Library Network at Developing Countries
Case Study:The Indonesian Digital Library NetworkIsmail Fahmi < [email protected] >
Metadata are:- sent from LOCAL to HUB server and,- downloaded from HUB to LOCAL server,
through the synchronization services.
Optionally, the files also can be sent from LOCAL to HUB.
There are 3 groups of requests: Authentication, PUT, and GET.
Authentication
Required for: Data synchronization Member access (roaming login)
Publisher &Membership data
Hub Server
Metadata &Local Members
Partner Server
Sync
Roaming Login
PUT
Send PUBLIC information to HUB server
Including: Metadata and Files (optional) Membership Registries
Publisher &Membership data
Hub Server
Metadata &Local Members
Partner Server
Metadata
Files
PUT The Files
Optionally (especially for temporary connection), the metadata related files can be PUT into HUB server.
Files will be sliced (by 10 KB, or customized) before they are sent.
Using HTTP PUT Method.
GET
Download: Metadata Publisher registries
Publisher &Membership data
Hub Server
Metadata &Local Members
Partner Server
Metadata (unified)
Publishers
Publisher Registry
<?xml version="1.0"?><DC.PUBLISHER>
GaneshaDL Central Hub<ID>GDLHUB</ID><TYPE>INSTITUTION</TYPE><APPS>GDL</APPS><ORGNAME>Knowledge Management Research Group ITB</ORGNAME><HOSTNAME>gdlhub.indonesiaDLN.org</HOSTNAME><IPADDRESS>167.205.23.27</IPADDRESS><PROTOCOL>HTTP</PROTOCOL><ADMIN>[email protected]</ADMIN><CKO>[email protected]</CKO><POSTMASTER>[email protected]</POSTMASTER><CONNECTION>DEDICATED</CONNECTION>
</DC.PUBLISHER>
File: /util/publisher.ini
User InterfaceMost users are familiar with interface like Yahoo, Google, Altavista, etc.
The information is organized by categories. Easy to Navigate and Search.
GDL-NetworkGDL-Network
IndonesiaDLN Topology
IndonesiaDLNHUB
institusiwarnet
personal
Other DLNetwork
OtherGDL-HUB
GDL-Network
GDL-NetworkGDL-Network
institusiwarnet
personal
GDL-HUB
ITB
RSHS
Unsyiah
UMM
Binus
UAJ
IPB
Salman
Depkes
Scenario of Sharing & Replication
GDL-NetworkGDL-Network
institusiwarnet
personal
GDL-HUB
ITB
RSHS
Unsyiah
UMM
Binus
UAJ
IPB
Salman
Depkes
Share
Replication
Replication
Replication
Scenario of Access
GDL-NetworkGDL-Network
institusiwarnet
personal
GDL-HUB
ITB
WarnetWarnet
Server GDL Warnet
Server GDL ITB (Source)
Search &^%?
Result = url
Download Full resources
GDL Sub-HUB
GDL-NetworkGDL-Network
GDL-HUB
GDL Sub HUBInstitusi X
Dept A
Dept B
personal
personal
GDL-NetworkHUB
Institution XGDL Sub HUB
GDL Server Dept
Benefits of Promoting Sub-Hub
Encourage institutions with distributed offices to develop DL network.
Boost the number of IndonesiaDLN partners.
Managing subject-specific knowledge and information (ie. Agriculture, healthy, human rights, etc)
Implementation Status
GDL (Ganesha Digital Library) version 1 = End of 1999.
Idea of developing the IndonesiaDLN = October 2000.
Launching of IndonesiaDLN = June 2001 (it just 3 months ago).
The Technology
Operating system: Unix/Linux Windows 98/NT/2000 Windows 95 – needs winsock32
Web server: Apache Scripting Lang: PHP 4 Database Server: MySQL Infrastructure: Dedicated or Dial-Up
Benefits
Easy to install (especially for Windows)
Able run on PC, Laptop promote personal digital library, small institution, SME
Allow dial-up and behind-proxy installation (temporary connection) good for small institution, personal, and internet café.
Problems & Limitations
Updating information at resource server will not automatically update the mirror sites.
The Networks
Currently only GDL-Network that has been fully operational.
Future: DLN for Human Rights, Agribusiness, Distance Learning, Bibliographic, Health Research, and Heritage.
The Network of Networks
IndonesiaDLN
GDL-Engine
GDL-Network
GDL-Engine
Human Rights-Network
GDL-Engine
Agribusiness
Network
GDL-Engine
Heritage-Network
GDL-EngineBiblio-
Network
GDL-Engine
NewSpektraDistance Learning-
Network
GDL-Engine
GDL-Network PartnersBy August 2001
The Distribution Map of GDL-Network PartnersBy August 2001
Members of GDL-Network
Member = users that have registered at GDL servers.
Currently the total members registered at GDL Hub is about 3028 users.
Members of GDL-Network (by partners)By August 2001