May 23 - 26, 2006 1

IASSIST 2006May 23 - 26

Ann Arbor, MI

Ronald C. JantzRutgers University Libraries

RUtgers COmmunity REpository(RUcore)

A FEDORA-based Institutional Repository To Support

Multidisciplinary Collections

http://rucore.libraries.rutgers.edu

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RUcore ObjectivesRUcore Objectives

To provide seamless, perpetual access to digital collections -- our resources and the resources of others.

To develop a flexible framework of “core” capabilities providing the enabling infrastructure, interoperability, and sustainability.

To create an information architecture which will support multidisciplinary collections.

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Institutional Repositories

Institutional Repository “. . . a set of services that a university offers to the members of its

community for the management and dissemination of digital materials created by the institution and its community members.” – Clifford Lynch

Types of Materials Deposited in Repositories* Theses/Dissertations Pre-prints/post-prints Digital images Assets from Special Collections Technical reports/working papers Data sets

* Lynch, C & Lippincott, J. (2005). Institutional repository deployment in the United States as of early 2005, D-Lib Magazine, 11, (9), available at: http://www.dlib.org/dlib/september05/lynch/09lynch.html

RUcore - How it Works

DigitalObject

Repository(Fedora)

XML

Digital Object Ingest

Fedora Repository Service

User, Collection, & Preservation Services

Workflow Management System

E-Journals

NJ DigitalHighway

Dissertations

User Input

Metadata andArchival masters

RUCORE Portal

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Information Architecture – The Collection, the Digital Object, and

Metadata

In its most general sense, a digital collection is simply a grouping of objects according to some criteria.

Types of digital collections in Rucore

• Explicit – A digital collection whose object membership is specified explicitly within the descriptive metadata.

• Dynamic – A digital collection of objects which are grouped according to user specified criteria.

RutgersUniversity

RutgersUniversityLibraries

GrantProject(NJDH)

M1

N1 N3

GeneralCollections

N2

RUCORE

New JerseyHistoricalSociety

O1

SpecialCollections

EagletonArchive

Roosevelt

O2

B1

P2P1

The Collection Architecture

Solid line – explicit membershipDashed line – dynamic membership

E-journals

O1

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The Digital Object

The digital object is the basic unit of management, encapsulating all essential information about the “document” to be disseminated and preserved, including:

Descriptive metadata (based on MODS*), administrative and event-based migration metadata

Byte streams in both presentation and archival formats (non-proprietary, infrastructure independent forms)

Persistent IDs and digital signatures

Software for dynamic behavior

* Metadata Object Description Schema

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Digital Object Architecture - Examples

Book Object

Persistent ID

Special Behaviors

Metadata

Data streams

PDF1 - presentation

XML1 – OCR text

ARCH1- Archival master(tiffs of each page)

DJVU1- presentation

SMAP1 – StrMap (TOC)

Opinion Poll

Persistent ID

Special Behaviors

Metadata

Data streams

ARCH1- Archival master

SPSS1- presentation

SMAP1 – StrMap

PDF1 – questionnaire

Descriptive

Technical

Source

Rights

Digital Prov.

Administrative

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Data in a Multidisciplinary Repository

Data Characteristics:

• Born-digital, no corresponding physical artifact

• Specialized metadata standards – DDI, FGDC, etc.

• Large – gigabytes ranging to terabytes

• Life cycle changes – versions, editions, re-purposing, etc.

• Many contributors, spread over wide-area network

• Users from many different disciplines

Fedora Repository Service

Collection & Preservation Services

A Domain Specific Collection within an IR(An Approach for DDI)

<var name>

<catValu>

<catgry>

<txt>

XML

Digital Object Ingest

Workflow Management System

Metadata Templates

DDI-based User Input

Managed

DDI Portal FGDC Portal

Fedora Repository

Preserved

RUcore Portal

(MODS)

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Continuing Directions(for Rutgers University Libraries)

Multidisciplinary Collections• Provide faculty repository services (focus on

data)• Mapping to different metadata standards

Institutional Repository• Support Fedora Preservation Services Working

Group• Develop a trusted repository – seek certification• Develop partnerships – sharing data and

software

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RUcore Open Source Software

AREA Software/Tool/Technology

Portal & user interface PHP/MySql (by RUL) Journal & Dissertations Open Journal System (PKP) Search Engine (full text) Amberfish (Etymon

Systems) Workflow Management PHP/MySql (by RUL) Management Services PHP/MySql (by RUL) Handles/persistent IDs CNRI Handle server Digital library framework Fedora OS/Webserver Unix-Linux/Apache

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A Trusted Repository

is one “. . .that establishes methodologies for system evaluation that meet community expectations of trustworthiness”*

Capabilities for a Trusted Repository (from Fedora Working Group)• Signature/Checksum creation and validation• Object format validation• Content model validation

• Audit trails and versioning• Event logging and alerting for preservation services• Enable Repository static/active states• History service of major repository events

*RLG (2001). Attributes of a Trusted Digital Repository: Meeting the Needs of Research Resources. Mountain View, CA.

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Handout – URLs(IASSIST 2006)

Rutgers University Libraries Rutgers University Community Repository at http://rucore.libraries.

rutgers.edu The New Jersey Digital Highway (funded by IMLS) at

http://www.njdigitalhighway.org The Eagleton Poll Archive at http://www.scc.rutgers.edu/eagleton/ RUL published e-journals

• “Pragmatic Case Studies in Psychotherapy” at http://pcsp.libraries.rutgers.edu• “Electronic Journal of Boundary Elemetns” at http://ejbe.libraries.rutgers.edu• “Journal of Rutgers University Libraries” at http://jrul.libraries.rutgers.edu

Fedora Fedora - developed by the University of Virginia and Cornell (grant

funded by Mellon) at http://www.fedora.info The Annual Fedora Users’ Conference (June 19-20) at

http://www.lib.virginia.edu/digital/fedoraconf/

R. Jantz – IASSIST 2006