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Embracing Embracing EvanescenceEvanescence
Digital Preservation 101
By Becky RyderUniversity of Kentucky Libraries
ETD 2004
Definition
•…is the SUM of all activities
•Required to keep materials in USABLE condition
•For as long as they are NEEDED
•Having considered the value of the ARTIFACT and the information it conveys
Preservation & Access Preservation & Access LifecycleLifecycle
Creation
Prevention
Restoration/Renewal
Reformatting
New Artifact
Analog PreservationAnalog Preservation
First Do No HarmBenign NeglectSuitabilityEach treatment facilitates a future
treatmentPhase PreservationAvoid duplicative effortsEconomy is gained by parsing/batching
What are the differences What are the differences
•Shorter lifecycle
•Active
•Recurring Cost
• Invisible decay
•Only know it when you use it
•Disasters can destroy greater amounts of information
Components of Preservation Components of Preservation PlanPlan
•Mandate
•Selection
•Policy
•Standards
•Resources
•Technology
Digital Preservation StrategiesDigital Preservation Strategies
•Backups/Mirror Sites
•Refresh
•Migration
•Emulation
•Hybrid approaches
•Computer Museums
•LOCKSS
What are some of the concernsWhat are some of the concerns
•Loss of functionality
•Rebuilding
•Total Loss
•Loss of the creative element
•Provenance is important
•XML
So what are we doing?So what are we doing?
• Panic ???
• Not making promises !!!!
• The Infrastructure is Coming, the Infrastructure is Coming....first cousin to the Emperor who wears new clothes… >; )
• Good Research ☺• Cornell
• RLG
• OAIS
OAISOAIS
•Open Archival Information System
• Incorporates all of the dimensions of a preservation plan
•CCSDS: Global Think Tank re Data• (Consultative Committee for Space Data Systems/NASA)
•Functional Model
OAIS Functional EntitiesOAIS Functional Entities
• Ingest
•Archival Storage
•Data Management
•Administration
•Preservation Planning
•Access
RLG TDRRLG TDR
•Trusted Digital Repository (TRD)
•Research Libraries Group (RLG)
• Interprets the OAIS model for digital materials housed by Legacy Collection Institutions
Attributes of a TDRAttributes of a TDR
•OAIS Compliance
•Administrative Responsibility
•Organizational Viability
•Financial Sustainability
•Technological Suitability
•System Security
•Procedural Accountability
Cornell Model
ConclusionConclusion
•Creator has a Significant Role
•Selection
• Institutional Policy
• It has to get easier