repository models: from experimentation to services

Repository models: from experimentation to services

Stephen GraceCentre for e-Research

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What is a repository?Content is deposited in a repository, whether by the content creator, owner or third partyRepository architecture manages content as well as metadataRepository offers a minimum set of basic services (put, get, search, access control)Repository must be sustainable and trusted, well-supported and well-managed

Heery and Anderson, Digital repositories review 2005

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Open Access repositoriesRepository must provide open access to its content (unless there are legal constraints)

Repository must provide open access to its metadata for harvesting

Not all repositories are OA repositories

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Core requirements for digital archives -1Commitment to digital object

maintenance

Organisational fitness

Legal and contractual rights

Effective and efficient policies

Acquisition and ingest criteria

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Core requirements for digital archives -2Integrity, authenticity and usability

Provenance

Dissemination

Preservation planning and action

Adequate technical infrastructure

CRL/DCC/DPE/nestor 2007

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Motivations for establishing repositoriesEnhanced access to resourcesNew modes of publication and peer reviewCorporate information management Data sharingPreservation of digital resourcesExternal pressure

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Context

Wider information environment

Corporate management systems

Content creation workflows

Personal information environment of users

Services built on repository content

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Types of repositories

By content type

By coverage

By functionality

By target user group

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Content types

Raw research data

Derived research data

Pre-prints

Post-prints

E-theses

Technical reports

Learning objects

Corporate records

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Coverage

Personal (author’s personal archive)

Journal (single or group)

Departmental

Institutional [IR]

Inter-institutional (regional, collaborative, economies of scale)

National

international

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Functionality

Enhanced access to resources (resource discovery)

Subject access to resources

New modes of dissemination

Institutional asset management

Sharing and re-use of resources

Digital preservation

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Target user group

Learners

Teachers

Researchers

Administrators

Regulators

General public

Can you think of other user groups served by existing repositories?

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OAIS

Does a repository have to conform to or otherwise follow OAIS (ISO 14721)?

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OAIS Information Model

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OAIS Functional Model

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A national election is called!Web archiving project

Dark archive, dissemination issues later

Rights issues already fixed

Funding has already been found

Write a use case

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Use case

Summary

Actors and goals – people and what they want to achieve

Stakeholders and interests

Main success scenario

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Sustaining an Institutional RepositoryMedium-large university

Active research and teaching

Integrated library and IT function

Start up was externally funded

Deliver a business case to the Principal

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Business case

Strategic objectives

Business need

Critical success factors

Stakeholders

Delivery mechanism

High-level cost estimate

Time and resources required

Risks

Preferred way forward

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Thank you

Stephen Grace

Preservation Manager

Centre for e-Research

King’s College London

stephen.grace@kcl.ac.uk

+44 207 848 1972