DSPACE
Introduction, Features &
Technology
Mukesh Pund
Principal Scientist
CSIR-NISCAIR
Outline
What is DSpace and what does it do?
The DSpace information model
Components & features of DSpace
What is DSpace?
A digital repository system
Captures, stores, indexes, preserves
and redistributes an organization's
research material in digital formats
Research institutions worldwide use
DSpace for a variety of digital
archiving needs
from institutional repositories (IRs) to
learning object repositories or electronic
records management, and more.
DSpace is
DSpace is a Digital Repository System
Institutional Repositories
Learning Object Repositories
Open source development model
BSD License
More than 1700 known instances of DSpace
around the world
(source:
http://registry.duraspace.org/registry/dspace
, as on January 2015)
Who built DSpace?
The MIT Libraries and Hewlett-Packard (HP) jointly
developed DSpace. The system is now freely
available to research institutions world-wide as an
open source system that can be customized and
extended.
Formed not-profit organization in July 2007: Dspace
Foundation
In July 2009, the DSpace Foundation ceased operation. DuraSpace
took over supporting the DSpace project.
Who manages DSpace?
DSpace is freely available as open source software. The DSpace
Community manages the code base and releases new versions
of the software. An active community of developers, researchers
and users worldwide contribute their expertise to the DSpace
Community
Who built DSpace?
Who can download the software?
Open-source systems like DSpace are
available for anyone to download and run at
any type of institution, organization, or
company (or even just an individual).
Users are also allowed to modify DSpace to
meet an organization's specific needs.
The BSD distribution license describes its
specific terms of use.
DSpace is freely available as open-source
software from SourceForge.
DSpace
Captures
Digital research material directly from the
creators
Describes
Allows descriptive, technical, and rights
metadata
Assigns persistent identifiers
Distributes
Searches metadata & full text
Delivers content over the web
Preserves
Content in supported formats for long term
preservation
DSpace: New CINECA Theme
DSpace: Old Theme
DSpace: Information Model
Communities & Collections
Hierarchical organization of items in the
repository
Items
Logical units of content
Receive persistent identifiers
Bitstreams & Bundles
Individual digital files
Community & Collection
Relationships
Community
Community
Collection
Collection
Collection Item
Item Item Item Item
Communities & Collections
Collections and Communities organize items into
a hierarchical form
Metadata:
Limited descriptive metadata available
Name, description, license, etc
Example:
Communities Collections
College of Architecture A Departments Technical Reports
Office of Graduate Studies A faculty members publications
Item Composition
Dublin Core
Item metadata
Bundle
Bitstream Bitstream Bitstream
Items
Items are logical units of content
Metadata:
All items have qualified Dublin Core metadata
May contain metadata in other formats encoded as a
bitstream
Example:
Web page (Images, CSS, HTML)
Book
Photographs
ETD thesis
Bitstreams
Bitstreams are Individual Digital files
Metadata:
Limited descriptive metadata available
name, file format, size, etc
Example:
PDF file Executable
Word document program
JPEG picture HTML file
CSS file
Bundles
Bundles group related bitstreams together
Metadata:
No metadata
Example:
HTML files and images that compose a single HTML
document may be organized into a bundle
Components & Features
of
DSpace
Item Metadata
Descriptive
Qualified Dublin Core
Non Dublin Core supported also (as long as its still flat)
Any other format may be added as a bitstream
However, it will not be searchable
Administrative
Who can access, remove, or modify an item
Stored in the database, no standard format used
Structural
Very basic
What bitstreams are contained in an item
What collections and communities does an item belong to
Dublin Core registry
Maintain what metadata fields may exist for an item in
DSpace.
Three components
Schema (new)
Element
Qualifier
Scope Note
Format Registry
Maintain a registry of file formats
Three levels:
Supported
Known
Unknown
Handle System
CNRI- Corporation for National Research
Initiatives
Provides a persistent identifier
Standard URLs change
Hardware or software changes
Political changes
Network changes
Handles attempt to address these problems by
creating a permanent URL independent of the
repository.
Example:
http://hdl.handle.net/1969.1/3356
E-People
DSpace user accounts are called E-people
If permitted, an e-person may:
Login to the site
Sign up to receive notifications about changes to a
collection
Submit new items to collections
Administer collections/communities
Administer the DSpace site.
Authorization
The DSpace authorization system enables
administrators to give e-people the ability to perform
the following operations on an object.
Add / Remove
Enable an e-person to add or remove any object (community,
collection, item)
Collection Administrator
Enable an e-person to edit an items metadata, withdraw items,
or map items into the collection.
Write
Enable an e-person to add or remove bitstreams
Read
Enable an e-person to read bitstreams
Ingestion
Ingestion = getting stuff into DSpace
Batch import
Many at a time
Needs to be in a specific format
XML encoded metadata
Bitstreams
Web based submission
One at a time
Workflow processes
Ingestion Processes
Workflow
Step 1: May reject the submission
Step 2: Edit metadata or reject
Step 3: Edit Metadata
Search & Browse
Users may browse any item in DSpace
Title
Author
Date
Community / Collection
Subject (new)
Users may search for any item in DSpace based
upon any Dublin Core value or a full text search.
OAI-PMH
Enables other sites to harvest metadata from a
DSpace repository
Collections are exposed as OAI sets
Only Dublin Core metadata is available
Statistics
Analysis the DSpace logs to generate a set of
statistics on how DSpace is being used.
Metrics collected:
Number of item visits
Number of collection visits
Number of community visits
Number of OAI requests
Number of logins
Most popular searches
Presented in a by-month form or in-total form.
SOLR Statistics
Google Analytic
DSpace: Software Components
UNIX-like OS or Microsoft Windows
Sun Java JDK 7 or later (standard SDK is fine,
you don't need J2EE)
Apache Maven -3.0.4 or later (Java build tool)
Apache Ant 1.8.4 or later (Java build tool)
Relational Database: (PostgreSQL or Oracle).
Servlet Engine: (Jakarta Tomcat 7.x, Jetty,
Caucho Resin or equivalent).
Perl (required for [dspace]/bin/dspace-info.pl)
Dspace Software Source code
New Features in Dspace 4.x
and 5.x
New Theme of JSPUI (by CINECA)
Curation tasks administrative UI
Advanced Embargo feature
Item level versioning feature
AJAX progress bar for file upload the
submission upload step
Sherpa/Romeo integration in the
submission upload step
New Features in Dspace 4.x
and 5.x
Discovery: Search & Browse is now
enabled by default in both XMLUI and
JSPUI
Facet Search (in Advance Search)
More:
Dspace-4:
https://wiki.duraspace.org/display/DSDOC4
x/Release+Notes
Dspace-5:
https://wiki.duraspace.org/display/DSDOC5
x/Release+Notes
