Oais: From Requirements to Reality at oclc oclc digital Archive Long-term retention and access

OAIS: From Requirements to Reality at OCLC

OCLC Digital Archive Long-term retention and access

• Interoperable

• OAIS
• Preservation Metadata

• Choice of service levels

• Integrate with current workflows

• CORC-based tools
• Administration module

OAIS to OCLC Digital Archive

All Digital Archive Service Levels

• OCLC admin staff:

• Performance and media management
• Periodic QA for functionality & fixity
• Offsite backup

• Owner admin staff:

• Movement of objects from one service level to another
• Content management

Digital Archive Service Levels

Implementation Drivers at OCLC

• Object characteristics

• Born digital
• Web documents
• Mostly public-domain

• User characteristics

• Didn’t create the object
• Want to integrate workflows
• Use current staff

• Supporting tools

• CORC
• Content and Autho Groups

Web Document Digital Archive Pilot

• Implement digital archive

• Manage web-based documents

• Capture
• Long-term retention & access

• Develop best-practices

• Preservation metadata
• Workflows

• Direct input from users

OCLC Digital Archive Record

• Based on OAIS information model

• 28 elements plus sub-elements

• Descriptive, preservation, representation
• Still images and text

• Implemented in XML

• Evolving

Capture

• User directed harvesting interface

• Preview
• Review

• Virus checking and checksum

Dissemination

• Objects and metadata (DIP) via FTP

• View

• Via standard browsers
• PURL/URL syntax is OpenURL
• Administrator sets access rights
• Administrator creates collections

Next phases

• Batch ingest

• Migration, on-the-fly conversion & emulation

• PURL re-direct

• Capture improvements

• Digital rights management

• Document authenticity issues

• More file types

Questions? www.oclc.org [e-mail]