skip navigation
  • Ask a LibrarianDigital CollectionsLibrary Catalogs
  •   Options
The Library of Congress > Digital Preservation > What the Library is Doing > Technical Architecture
Digital Preservation
  • Digital Preservation Home
  • Importance of Digital Preservation
  • What the Library Is Doing
  • Partners
  • Achievements
  • What You Can Do
  • News & Events
  • Contact Us

Related Resources

  • Digital Collections & Programs
  • Digital Formats Sustainability
  • Section 108 Study Group
  • Standards at the Library of Congress
  • U.S. Copyright Office
  • Web Capture
  • World Digital Library

 RSS | Blog

 Podcasts

 Email Updates

About Digital Preservation

View a short presentation about digital preservation.

 Try it out

What the Library Is Doing

Candidate Web sites launched prior to 2000 were not preserved and are lost to history - The Library has collected and preserved Web sites for the 2000 and 2004 elections
What the Library Is Doing Home | What Is Being Saved | About the Program

Archive Ingest and Handling Test (AIHT)

The Archive Ingest and Handling Test (AIHT), is designed to identify, document and disseminate working methods for preserving the nation's increasingly important digital cultural materials, as well as to identify areas that may require further research or development. The AIHT is part of an initiative, led by the Library of Congress, to build a network of preservation partners through the National Digital Information Infrastructure and Preservation Program (NDIIPP).

Final Reports

  •  The Archive Ingest and Handling Test (AIHT) Final Report (PDF, 552 Kb)
  •  Harvard University (PDF, 667 Kb)
  •  Johns Hopkins University (PDF, 95 Kb)
    • Metadata mapping spreadsheet (Excel, 29 Kb)
    • DSpace performance report (PDF, 104 Kb)
    • Fedora performance report (PDF, 123 Kb)
    • Source code (WinZip, 213 Kb)
  • Old Dominion University (1.3 Mb)
  • Stanford Digital Repository (1.7 Mb)
    • Appendix F2 (Excel, 22 Kb)

AIHT Interim Report Slide Presentation

Martha Anderson, NDIIPP Project Manager, and Clay Shirky, NDIIPP Technical Advisor, presented an interim report on The Archive Ingest and Handling Test (AIHT) at the Digital Library Federation Developers Forum. October 27, 2004

 The Archive Ingest and Handling Test (AIHT) Interim Report Presentation
(PDF, 120 Kb)

NDIIPP Technical Architecture

Version 0.2 of the Technical Architecture for the National Digital Information Infrastructure and Preservation Program is available.

 Technical Architecture, Version 0.2 ( PDF, 1.5 Mb)

Digital Formats

The Digital Formats Web site provides information about digital content formats, including files, underlying bitstreams and encodings, and "wrappers". The site provides information about media-independent ("intangible") formats but not about media-dependent ("tangible") formats. This resource is intended to support both strategic planning and individual selection decisions regarding digital content and its preservation at the Library of Congress. As time passes, the site will offer an ever-increasing inventory of information about current and emerging formats that are promising (or not promising) for long-term sustainability.

 Visit the Digital Formats site

 Back to Top

About | Site Map | Contact | Accessibility | Legal | USA.gov