what is wrong with digital repository software? or why to archive now !
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What is Wrong with Digital Repository Software? Or why to Archive Now !. Hussein Suleman [email protected] University of Cape Town Department of Computer Science Advanced Information Management Laboratory Sivulile November 2006. Outline 1. What are Digital Object Repositories. - PowerPoint PPT PresentationTRANSCRIPT
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What is Wrong with Digital Repository Software?Or why to Archive Now !
Hussein [email protected]
University of Cape TownDepartment of Computer Science
Advanced Information Management LaboratorySivulile
November 2006
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Outline 1
What are Digital Object Repositories
From Closed to Open Access
From Heritage to Education
Building SoftwareUsing Existing Software
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What is a Digital Object Repository?
source: DISA, Univ. of KZNhttp://disa.ukzn.ac.za
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Heritage Repository Object
source: Mayibuye, DISA, Univ. of KZNhttp://disa.ukzn.ac.za
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DORs in Education
source: Worldwide Greenhouse Education, Univ. of Vermonthttp://www.uvm.edu/wge/education.htm
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Closed Repositories
source: IEEE Explorehttp://ieeexplore.ieee.org/Xplore/home.jsp
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Open Access Repositories - Research
source: arXiv.org, Cornell Universityhttp://arxiv.org/
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Open Access Repositories - Teaching
Consortium for the Advancement of Undergraduate Statistics Educationhttp://www.causeweb.org/resources/
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Why Open Access? Lawrence (2001): clear correlation between open
access and impact in CS Eysenbach (2006): double citation impact for open
access as compared to closed journal
and closer to home… Suleman (2006):
open access repository part of normal operations of department – formal record of research
open access archive used extensively by external parties indexed aggressively by search engines resources accessed almost immediately after deposit and
consistently thereafter
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OA Repositories in SA
source: UCT Lawspace, Univ. of Cape Townhttp://lawspace.law.uct.ac.za
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OpenDOAR’s view on South Africa
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How to Build a Digital Repository
source: DSpace: An Open Source Dynamic Digital Repository, DLib Magazinehttp://www.dlib.org/dlib/january03/smith/01smith.html
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(Open Source) Repository Packages
?
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Outline 2
Future (Im)perfect
Arguments against
Repositories
What Repository Software does
RIGHT?
Using Existing Software
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What does repository software do RIGHT? Infrastructure
Digital Objects are stored/archived Users can access items from the Web
Services Search full-text and metadata Browse by author/title/etc.
Interoperability OAI-PMH interoperability Ability to ingest and export items
Security User roles and authentication
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Arguments against OA RepositoriesDigital Repositories are a lot of hype – the technology is actually not yet mature enough to be practical or usable!
It is so difficult for us as poor institutions in
South Africa, with few staff and inadequate
facilities and training.
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Training, Policies, Staff, Tools, … Training
Have you been to a Sivulile workshop? Policies
Listen to the other speakers! Staff
What proportion of your library staff are IT vs. how many customers use IT rather than physical resources?
Tools Are they any good? or are the tools pure EVIL?
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Repository Evils ? No integration with Windows/Linux/BSD
Modern operating systems have packaging systems – many IR systems are still distributed in “source code”.
Why not?
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Repository Evils ? Low-level Components
No clean external API to communicate with services within most systems.
None of DSpace, EPrints, Greenstone …
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Repository Evils ? Customisation requires programmer!
Date: Mon, 23 Oct 2006 20:58:20 +0100From: Christopher Gutteridge <[email protected]>To: "EPrints.org Technical List" <[email protected]>Subject: Re: [EP-tech] Chicago citation style and e-prints
To show the family name first last you can do@creators;order= fg@or gf
gf= given familyfg= family, given
To change the seperators to what you wand add the following to yourlocal phrase file (not system-phrases) <epp:phrase id= "lib/metafield:join_name">, </epp:phrase> <epp:phrase id= "lib/metafield:join_name.last"> and </epp:phrase>
But that can't be set on a per-citation type level.
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Repository Evils ? Customisation requires programmer!
Date: Wed, 18 Oct 2006 10:24:45 +1300 (NZDT)Subject: Re: [greenstone-users] Another question: multivalued fieldsFrom: [email protected]
Hello Ed,
You can use AZCompactList classifier, for which the "allvalues" parameter is the default. Also, you can use [sibling:Subject] or [sibling:Author] format statement to display all multiple values of Subject or Author in VList,
RegardsShaoqun
> Thank you for your help a few weeks ago. I did get a sample collection> working, and have just heard that the organisation is keen to continue – I> now need tog et a couple of things working that I didn't finish before.
> One of those is allowing for multiple values for Author and Subject. I have> created additional columns in the .cfg file and put some test data in.> Where is the "allvalues" parameter put and can it be done through the GLI> or do I have to edit the config file?
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Repository Evils ? Poor Scalability
Most systems do not scale well beyond small collections.
DSpace
EPrints
source: Technical Evaluation of selected Open Source Repository Systems, Catalyst IT
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Repository Evils ? Identity not easily removable
DSpace is the name of the software, not the archive!
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Repository Evils ?
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Repository Evils ?
Buy-In / Lock-In
How easy is it to switch from DSpace to EPrints to Fedora to … ?
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Repository Evils
Are these issues significant roadblocks?
Are they being addressed at all?
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Current Development Directions
Problem Solution
Low-level interfaces
Greenstone 3 using Web Services
Scalability Key concern in DSpace 3 architecture
Configurability Tools are becoming more automated and flexible over time
OS integration Will improve as tools become mature and development stabilises
Lock-in and Identity
Will improve when tools don’t need to be “sold”
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Current Research Directions Fedora
Generic interface to scalable repository Pathways / OAI-ORE
(Submit) Interface to repository components OCKHAM
Service registry for composition of systems from components
DILIGENT Scalability of repositories in a grid
AJAX Interactive Web-based interfaces
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Future Im(perfect) Repository software gets a lot RIGHT,
Repository software still has issues, Software use should not require a programmer Software is a means to an end, not an end Software should be appropriately engineered for
reuse on a large scale like other OSS tools Software should easily integrated into other
systems
… but most of these issues have been noted and/or are being actively addressed
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Bottom LineWe NEED
Digital Object Repositories
DONT PANIC!
• You’re not alone
• The software has issues but is constantly
improvingBut that doesn’t do everything I
want !
Use popular software packages
The easiest possible way
NOW !
To store and disseminate knowledgeWhy?
When?
How?
So…
DONT WAIT!
• The need is greater than the (perceived) technical problems
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Open Access and Institutional
Repositories NOW!
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the end.