A Basic Introduction

By Scott Phillips2005/8/7

Agenda

What is DSpace and what does it do?

The DSpace Information Model

Components & Features of DSpace

How to Install DSpace

DSpace is…DSpace is a Digital Repository System– Institutional Repositories– Learning Object Repositories

Open source development model– BSD license

HP & MIT

86 Instances of DSpace around the world(Source: the DSpace wiki)

DSpace does…Captures– Digital research material directly from the creators

Describes– Allows descriptive technical and right metadata– Assigns persistent identifiers

Distributes– Searches metadata– Delivers content over the web

Preserves– Content in supported formats for long term preservation

Information Model

Communities– Research units of the organization

Collections– Arbitrary Groupings of Items

Items– Logical units of content– Receive persistent identifiers

Bitstreams– Individual digital files

Communities & CollectionsHierarchical organization of communities and collections

Mirror the university structure

– Community SubCommunity

– Collection – SubCommunity

Collection

SubComunity– Collection

Community List

Items & Bitstreams

Items are digital artifacts collected in DSpace

Composed of:– Qualified Dublin Core Metadata– Bitstreams & Bundles

DSpace Item

Metadata

Descriptive– Qualified Dublin Core

Administrative Metadata– Who can access it, remove it, change it, etc.

Structural Metadata– Very basic– Bitstreams & Bundles

Components & Features

Handle System

One handle per ItemURL is independent of the actual resource location

Ex:– http://hdl.handle.net/123456789/1308

Dublin Core Registry

Maintain what metadata fields may exist for an item in DSpace.

Qualified Dublin core

Dublin Core Registry

Format Registry

Determine what formats are supported in DSpace.

Three levels of support– Supported– Known– Unknown

Format Registry

E-PeopleAn account with DSpaceSeveral forms of authentication– Password– LDAP– MIT’s x509 certificates

May have privileges on:– Communities– Collections– Items– Bundle– Bitstream

IngestionIngestion = getting stuff into DSpace

Batch Import– Many at a time– Needs to be in a specific format

XML encoded metadataBitstreams

Web Based Submission – One at a time– Flexibility in the metadata

Ingestion Process

Submission WorkflowStep 1: May reject the submissionStep 2: Edit metadata or rejectStep 3: Edit metadata

Installing DSpace

Technology

Preferably a UNIX-like OS– Easy: Solaris, Linux, OS X– Hard: Windows

Java 1.4 (next version will require 1.5)Apache Ant 1.5PostgreSQL 7.3Jakarta Tomcat 4.x / 5.x

Installing DSpace

Determine where to install– [dspace-source]

The source code for DSpace

– [dspace]Where to install DSpace

– [tomcat]Where tomcat is installed

Installing DSpace

1. Download the latest DSpace– http://dspace.org/

2. Create the DSpace user– useradd –m dspace

3. Create a DSpace database– createuser –U postgres –d –A –p dspace– createdb –U dspace –E UNICODE dspace

Installing DSpace

4. Modify the dspace.cfgdspace.urldspace.hostnamedspace.namedb.password db.usermail.servermail.from.addressfeedback.recipientmail.admin

Installing DSpace

1. Compile DSpace– cd [dspace-source]– ant fresh_install

2. Deploy the WAR file– cp [dspace-source]/build/*.war

[tomcat]/webapps

3. Create the initial administrator account– [dspace]/bin/create-administrator