Long term preservation of digital information

ABSTRACT

The preservation of digital data for the long term presents a variety of challenges from technical to social and organizational. The technical challenge is to ensure that the information, generated today, can survive long term changes in storage media, devices and data formats. This paper presents a novel approach to the problem. It distinguishes between archiving of data files and archiving of programs (so that their behavior may be reenacted in the future).

For the archiving of a data file, the proposal consists of specifying the processing that needs to be performed on the data (as physically stored) in order to return the information to a future client (according to a logical view of the data). The process specification and the logical view definition are archived with the data.

For the archiving of a program behavior, the proposal consists of saving the original executable object code together with the specification of the processing that needs to be performed for each machine instruction of the original computer (emulation).

In both cases, the processing specification is based on a Universal Virtual Computer that is general, yet basic enough as to remain relevant in the future.

References

1. 1.Waters, D, and Garret, J.: Preserving Digital Information. Report of the Task Force on Archiving of Digital Information, Commission on Preservation and Access and the Research Libraries Group, Inc., May 1996.
2. 2.Rothenberg, J. Ensuring the Longevity of Digital Documents. Scientific American, 272(1), January 1995.
3. 3.Rothenberg, J.: Avoiding Technological Quicksand: Finding a Viable Technical Foundation for Digital Preservation. A report to the Council on Library and Information Resources, January 1999.
4. 4.Bearman, B. Reality and Chimeras in the Preservation of Electronic Records, D-Lib Magazine, Vol. 5, No 4, 1999.
5. 5.Lorie, R.: Long Term Archiving of Digital information, IBM Research Report RJ 10185, July 2000.
6. 6.Dadam, P. & al.: A DBMS Prototype to support Extended NF2 Relations, ACM SIGMOD, May 1986.
7. 7.Aho & al.: Compilers: Principles, Techniques, and Tools. Addison-Wesley, 1986
8. 8.Harold, E.R. XML, Extensible Markup Language. IDG Books Worldwide, 1998.

Index Terms

• Applied computing

  • Computers in other domains

    • Digital libraries and archives

    • Publishing

• Information systems

  • Information systems applications

    • Digital libraries and archives