Showing posts with label TDR. Show all posts
Showing posts with label TDR. Show all posts

Saturday, February 7, 2015

Digital Preservation Coalition publishes ‘OAIS Introductory Guide (2nd Edition)’ Technology Watch Report

Digital Preservation Coalition publishes ‘OAIS Introductory Guide (2nd Edition)’ Technology Watch Report. Brian Lavoie.  Digital Preservation Coalition. Watch Report. October, 2014. [PDF]

The report describes the OAIS, its core principles and functional elements, as well as the information model which support long-term preservation, access and understandability of data. The OAIS reference model was approved in 2002 and revised and updated in 2012. Perhaps “the most important achievement of the OAIS is that it has become almost universally accepted as the lingua franca of digital preservation”.

The central concept in the reference model is that of an open archival information system. An OAIS-type archive must meet a set of six minimum responsibilities to do with the ingest, preservation, and dissemination of archived materials: Ingest, Archival Storage, Data Management, Preservation Planning, Access, and Administration. There are also Common Services, which consist of basic computing and networking resources.

An OAIS-type archive references three types of entities: Management, Producer, and Consumer, which includes the Designated Community: consumers expected to independently understand the archived information in the form in which it is preserved and made available by the OAIS. This is a  framework to encourage dialogue and collaboration among participants in standards-building activities, as well as identifying areas most likely to benefit from standards development.

An OAIS-type archive is expected to:
  • Negotiate for and accept appropriate information from information producers;
  • Obtain sufficient control of the information in order to meet long-term preservation objectives;
  • Determine the scope of the archive’s user community;
  • Ensure the preserved information is independently understandable to the user community
  • Follow documented policies and procedures to ensure the information is preserved against all reasonable contingencies
  • Make the preserved information available to the user community, and enable dissemination of authenticated
An OAIS should be committed to making the contents of its archival store available to its intended user community, through access mechanisms and services which support users’ needs and requirements. Such requirements may include preferred medium, access channels, and any access restrictions should be clearly documented.

 The OAIS information model is built around the concept of an information package, which includes: the Submission Information Package, the Archival Information Package, and the Dissemination Information Package. Preservation requires metadata to support and document the OAIS’s preservation processes, called Preservation Description Information, which ‘is specifically focused on describing the past and present states of the Content Information, ensuring that it is uniquely identifiable, and ensuring it has not been unknowingly altered’. The information consists of:
  • Reference Information (identifiers)
  • Context Information (describes relationships among information and objects)
  • Provenance Information (history of the content over time)
  • Fixity Information (verifying authenticity)
  • Access Rights Information (conditions or restrictions)
OAIS is a model and not an implementation. It does not address system architectures, storage or processing technologies, database design, computing platforms, or other technical details of setting up a functioning archival system. But it has been used as a foundation or starting point. Efforts, such as TRAC, have been made to put the attributes of a trusted digital archive into a ‘checklist’ that could be used to support a certification process. PREMIS is a preservation metadata initiative that has emerged as the de facto standard. METS, and XML based  document form, has become widely used for encoding OAIS archival information packages.

The ‘OAIS reference model provides a solid theoretical basis for digital preservation efforts, though theory and practice can sometimes have an uneasy fit.’




Thursday, January 8, 2015

GPO Prepares To Become First Federal Agency Named As Trustworthy Digital Repository For Government Information

GPO Prepares To Become First Federal Agency Named As Trustworthy Digital Repository For Government Information. U.S. Government Publishing Office. Press Release. December 18, 2014.
The GPO is preparing to become the first Federal agency to be named as a Trustworthy Digital Repository for Government information through certification under ISO 16363, which defines a recommended practice for assessing the trustworthiness of digital repositories. The Audit and Certification checklist will be used by an accredited outside organization. This would be the first Federal agency to be certified.

To begin the audit process, GPO will be one of 5 institutions to receive a resident through the National Digital Stewardship Residency program to work for one year on preparation for the audit and certification of FDsys as an ISO 16363 Trustworthy Digital Repository.

The GPO has also recently changed its name to the Government Publishing Office.


Sunday, November 2, 2014

ARMA 2014: The Convergence of Records Management and Digital Preservation

ARMA 2014: The Convergence of Records Management and Digital Preservation. Howard Loos, Chris Erickson. October 2014. [PDF]
Presentation on records management and digital preservation given at the ARMA 2014 conference.
Notes:
  • Records Management mission: To assist departments in fulfilling their responsibility to identify and manage records and information in accordance with legal, regulatory, and operational requirements
  • RIM Life Cycle to DP Life Cycle
  • Challenges and successful approaches
  • Storing records permanently with M-Discs
  • Introduction to Digital Preservation, challenges, format sustainability, media obsolescence, metadata, organizational challenges,
  • Life of digital media
  • Best practices and processes
  • OAIS model
  • Rosetta Digital Preservation System
  • Library of Congress Digital Preservation Outreach & Education (DPOE) Network

Monday, February 11, 2013

Sustaining Our Digital Future Institutional Strategies for Digital Content

Sustaining Our Digital Future: Institutional Strategies for Digital Content. Nancy L Maron, Jason Yun and Sarah Pickle. Strategic Content Alliance. January 29, 2013. (PDF, 91 pp.)
The shift with digital media in scholarly communications is transformative; data sets, dynamic digital resources, websites, digital collections,  crowd sourced or born digital content: there are challenges and opportunities, along with questions about who is responsible for maintaining them, and how to maximize the value of the content.

Some findings:
  • project have received support from the host institution, but few have plans for ongoing support.
  • There are potential partners on campus, but project leaders do not seek them early
    enough when critical decisions are being made.
  • Digital projects across campuses may be hosted by many groups, which poses challenges for discovery. There is often no single place for users to find digital projects and some projects can too easily slip from view.
  • Current funding styles do not support ongoing operation
  • „Campus-wide solutions are beginning to emerge, but even these tend to address just the basic “maintenance” issues of storage, preservation and access.
  • „Focus is often on creating new content, with little thought about ongoing efforts to enhance the content or update user interfaces.
Recommendations:
  •  Perform an early and honest appraisal to find which projects are likely to require support after completion:
    1. Digital content requiring just “maintenance”: plan that the content will be deposited and integrated into some other site, database, or repository.
    2. „Digital resources requiring ongoing growth and investment: These require early sustainability planning, including identifying institutional or other partners and careful consideration of the full range of costs and activities needed to keep the resource vibrant.
  •  Be realistic in assessing the future needs of the resource at its outset and in continuing support.
  •  „Identify campus partners early on.
  •  „Consider how central your project is to the overall mission of the institution.
  • „Consider if projects could be drawn together to create a deeper network of support, both for “maintenance” projects and those with the potential to really grow.
  • Develop ways to help users find decentralized content and to reach out to content users. These could start as an inventory of all of the digital holdings or common catalogs.
  • „Determine where scale solutions pay off, where experts are best placed to champion a project, or create common storage, usage and preservation systems for an organization.
  • Continue to identify and support ongoing development of the “front-end”, including user needs, interface development, and content enhancement. Pay attention to the changing needs of users and determine what enhancements the digital resource will require.
Libraries, museums, technology departments, and digital humanities centres are among the players that have begun to emerge as potential leaders of greater coordinated digital support on university campuses. Libraries have begun to consider the support of digital resources to be a critical part of their missions. Some universities provide advisory support to project leaders and libraries provide help for digital projects, from help to understand grant requirements, co-developing projects, providing hosting, curation, and preservation expertise.

 Sustainability and Use: 
  •  Research data platforms: At some institutions major initiatives are underway to develop research data platforms. The goal of the platform is not just preservation and storage but access and reuse. The first step is to have a platform. From there they can test and refine the service for researchers depositing data sets, library  curated collections, and university departments.
  • "A coherent digital policy from early review, guidelines on costings and deposit standards, to forecasting what ongoing activities will be needed and who will carry them out, would ideally remove much of the risk of “digital time bombs” while obliging both project leaders and university leaders to take a moment to envision the ongoing impact they want these resources to have, and how to best achieve that."
  • Unlike universities (who often play the role of reluctant, passive, or simply unaware host, to a great deal of digital content created by their scholars) museums and libraries tend to be the ones initiating this work and are eager to build and maintain these collections.
  • Despite the benefits of centralisation, the mere presence of a catalogue and centralised
    repository does not ensure greater usage of or engagement with its holdings.
  • Many institutions devote considerable attention to the upfront creation of content, but not nearly as much to its ongoing enhancement or reuse, resulting in collections that are certainly present in the main catalogue, but otherwise exist only as capsules of content, frozen in time.
  •  Once the project is finished, management of the digital resource is not always clear.

Sunday, October 23, 2011

OAIS / TDR presentation at FDLP.

OAIS / TDR presentation at FDLP.  James A. Jacobs. Federal Depository Library Conference. Free Government Information. October 2011. [PDF]
A presentation giving an introduction to the "Reference Model for an Open Archival Information System" (OAIS) and the "Audit And Certification Of Trustworthy Digital Repositories" (TDR).  This includes slides with speaker notes and a nice handout about related information with links. Every library decision should assess the impact of digital issues.  Notes:

OAIS
1. It defines the functional concepts of a long-term archive with consistent, unambiguous terminology.
2. It gives us a functional framework for designing archives, and a functional model.
3. It gives us a standard for “conformance.”
4. It is a “Reference Model” that describes functions; it is not an “implementation”
5. Some key OAIS concepts are:
   - Designated Community: An identified group of potential Consumers who should
      be able to understand a particular set of information.
   - Description of roles and functions in the information life cycle.
   - The Long Term: Long enough for there to be concern about changing technologies,
      new media and data formats, and a changing user community.
   - Preserved content must be usable according to the designated community

TDR
Documents what is being done and how well it is being done.
Provides 109 “metrics” for measuring conformance to OAIS in three areas: 
1. Organizational Infrastructure
2. Sustainability and succession plan
3. Digital Object Management
4. Technical Infrastructure And Security Risk Management