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Two Foundation Documents
Trusted Digital Repositories: Attributes and Responsibilities (RLG/OCLC)
www.rlg.org/longterm/repositories.pdf
OAIS Reference Model (CCSDS)
ssdoo.gsfc.nasa.gov/nost/wwwclassic/documents/pdf/CCSDS-650.0-B-1.pdf
Attributes of a Trusted Repository
OAIS Compliance
• Administrative Responsibility
• Organizational Viability
• Financial Sustainability
• Technological and Procedural Suitability
• System Security
• Procedural Accountability
OAIS Functional Groups
Generic Features
• Ingest
• Data Management
• Access
• Common Services
Preservation-Specific
• Administration
(includes policies)
• Archival Storage
• Preservation Planning
Foundation Documents
• TDR on its own lacks an implementation model
• OAIS on its own lacks organizational context
• Together, they leverage community-based efforts and enable collaborative initiatives
Organizational Infrastructure
• Best expressed by TDR
• Best reflected in:
– acknowledgement
– policy development
– implementation
– preservation planning
– institutional commitment
TechnologicalInfrastructure
• Best expressed by OAIS
• Combination of:
– hardware and software
– formats and storage
– network and security
– functions and workflow
– procedures, protocols, documentation
– technical and archival skills
ResourcesFramework
• No community-based articulation comparable to TDR or OAIS
• Includes:
– staff
– technology
– training
– other
$$$$
Five Organizational Stages
• Acknowledge: understanding that digital preservation is a local concern
• Act: initiating digital preservation projects
• Consolidate: segueing from projects to programs
• Institutionalize: incorporating the larger environment and rationalizing programs
• Externalize: embracing inter-institutional collaboration and dependency
Understanding that digital preservation is a local concern
Stage 1: Acknowledge
Organizational infrastructure: often non-existent; implicit policy, or very high level
0101 Technological infrastructure: non-existent or heterogeneous and decentralized; disparate elements
$$$$ Resources: generally low, finite, ad hoc financial commitment
Stage 2: Act
Organizational infrastructure: implicit policy or expressed in general terms, increased evidence of commitment
0101 Technological infrastructure: project- specific and reactive; ad hoc location
$$$$ Resources: often project-based funding
Initiating digital preservation projects
“Be patient, madam. At this very moment, high-speed computers are working to eliminate or aggravate your problem.”
Stage 3: Consolidate
Organizational infrastructure: development of basic and essential policies
0101 Technological infrastructure: assessment of technology investment and requisite infrastructure, shift to proactive mode
$$$$ Resources: some funding and support beyond projects, but limited
Segueing from projects to programs
Stage 4: Institutionalize
Organizational infrastructure: consistent, systematic management; comprehensive policy framework
0101 Technological infrastructure: technology planning anticipates needs; infrastructure investments planned/implemented
$$$$ Resources: sustainable funding identified for core program areas and enhancement
Incorporating the larger environment
Stage 5: Externalize
Organizational infrastructure: virtual organizations complement institutional ones; collaboration inherent feature in resource planning
0101 Technological infrastructure: distributed and highly integrated; extra-organizational features and services
$$$$ Resources: varying levels of investment, but sustainable funding; possibly distributed financial management
Embracing inter-institutional collaboration and dependencies
Using the Stages
• Development: The Stages represent a maturity model; institutions will pass through each stage, however briefly
• Communication: The Stages provide a way of communicating about digital preservation development
• Measurement: The Stages enable one to measure progress towards programmatic digital preservation goals