Transcript Reshaping Preserv 2 from a Life(cycle) perspective Steve Hitchcock and Dave Tarrant Preserv 2 Project School of Electronics and Computer Science (ECS), Southampton University JISC Digital.

Reshaping Preserv 2 from a
Life(cycle) perspective
Steve Hitchcock and Dave Tarrant
Preserv 2 Project
School of Electronics and Computer Science (ECS),
Southampton University
JISC Digital Curation and Preservation Projects Forum
Placing Ourselves in the Bigger Picture
30 June 2008, Birkbeck College, London
Some tricky questions
Q1 What is digital preservation?
A?
But, from summary of LIFE2 conference:
“We have been presented with reports from a number of Case Studies
… seems to suggest that we are still learning what digital
preservation means in practice”
Q2 Who wants digital preservation?
A?
Q3 When is preservation not preservation?
A e.g. when it’s storage or interoperability
Digital preservation as an intangible asset
• Laurie Hunter
“digital preservation is a selective preservation of an
intangible asset that has a reasonable probability of
producing benefits at some future time. In that
sense, digital preservation decisions are investment
decisions … Hence, appropriability, the nature of the
market for preserved data, its pricing and timescale
or life-cycle, are all important issues which need to
be addressed.”
http://www.dcc.ac.uk/docs/Wksppaper.pdf
Understand the needs of the market, but what if the
market doesn’t understand the product in the first place?
Definitions of digital preservation
Digital preservation combines policies, strategies and
actions that ensure access to digital content over time.
Digital preservation combines policies, strategies and actions to ensure access
to reformatted and born digital content regardless of the challenges of media
failure and technological change. The goal of digital preservation is the
accurate rendering of authenticated content over time.
Digital preservation combines policies, strategies and actions to ensure the accurate rendering of authenticated
content over time, regardless of the challenges of media failure and technological change. Digital preservation
applies to both born digital and reformatted content.
Digital preservation policies document an organization’s commitment to preserve digital content for future use;
specify file formats to be preserved and the level of preservation to be provided; and ensure compliance with
standards and best practices for responsible stewardship of digital information.
Digital preservation strategies and actions address content creation, integrity and maintenance….
Prepared by the Preservation and Reformatting Section, Working
Group on Defining Digital Preservation ALA Annual Conference,
Washington, D.C., June 24, 2007
http://www.ala.org/ala/alcts/newslinks/digipres/index.cfm
Preserv schematic: original (2005)
Preserv schematic: original (simpler)
Repository
Content
Preservation
service provider
Preserv: preservation services for digital
institutional repositories
Preservation costs
• Neil Beagrie, et al. Keeping Research Data Safe: A Cost
Model and Guidance for UK Universities
http://www.jisc.ac.uk/publications/publications/keepingresearchdatasafe.aspx
• LIFE2, applying a whole-business approach, including
overheads; moving towards a ROI-based method
(LIFE3?)
• “there is one question everyone needs to
ask - how much can you afford to pay?”
David Rosenthal, DCC-associates list, 26
June
One-size cost model does not fit all
Schematic: end Preserv 1 (2007)
EPrints storage architecture
EPrints 3.2 architecture (proposed)
Import Plug-ins
Export Plug-ins
EPrints Core
Interfaces, Submission Manager
Database Controller
Storage Controller
Honeycomb
Interoperability in action
OAI-ORE
EPrints & Fedora
Preserv
.org.uk
Repository Preservation and
Interoperability
Which is which?
Interoperability in action: the video
Dave Tarrant, Ben O’Steen and Tim Brody, Preserv 2
From Blip TV http://blip.tv/file/866653
Preserv project structure (May 2008)
Content
Policy
Services
TNA API - PRONOM
Repository Software
EPrints
Fedora
Local Disk
Remote Server
Cloud Service
Honeycomb
EPrints
Fedora
Storage Controller
Services Registry
EPrints
Fedora
DSpace
• File Format Identification
• Significant Properties
• Migration Tools
• (Performance Metrics)
Scheduler (Oxford)
• Services & Invocation API
Interoperability
• OAI-ORE Specification &
Mapping
Physical Storage
Application Program Interface (API) + XML
Relation Exclusivity (1 to 1, 1 to Many)
Preserv project structure (May 2008)
Content
Policy
Services
TNA API - PRONOM
Repository Software
EPrints
Fedora
Local Disk
Remote Server
Cloud Service
Honeycomb
EPrints
Fedora
Storage Controller
Services Registry
EPrints
Fedora
DSpace
• File Format Identification
• Significant Properties
• Migration Tools
(Performance Metrics)
Scheduler (Oxford)
• Services & Invocation API
Interoperability
• OAI-ORE Specification &
Mapping
Physical Storage
Application Program Interface (API) + XML
Relation Exclusivity (1 to 1, 1 to Many)
Repository preservation service providers
Start of Preserv (2005)
• Preservation services, e.g. National libraries
• Institutional services
• Repository software
Manue.fig
Repository preservation service providers
Today
• Preservation services, e.g.
– KB-NARCIS (Dutch portal, includes
DARE IRs)
– German National Library (theses)
– BL (UK PubMed Central)
– Sherpa-DP
• Institutional services, e.g. Oxford
• Repository software
• Repository services
• Library services, e.g. OCLC
• Cloud storage services, e.g. Amazon, Google
Preserv 2 today
• Preserv has evolved
• More focussed on enabling the infrastructure for a
full and diverse range of preservation services
required by the market
• A project, not a service provider
• Project partners, singly or jointly, might emerge as
different types of preservation service provider
• Let many preservation service providers flourish