Trip Report: Nestor Winter School LZA

Event: nestor/DPE Winter School 2007 "Praktische Anwendungsfelder der digitalen Langzeitarchivierung"

Gernrode/Harz, 11. -15. November 2007

Participants MPDL: Kristina

For details, please check the Agenda

Digital longterm preservation

• Methods
  1. Emulation: Reproduction of the original hardware, software and operating system
  2. Migration: Periodical transfer of the digital material from one (older) hard/software configuration to another (newer) one

• OAIS Model

Presentation of the OAIS Model (Reference Model for an Open Archival Information System), which is a terminological and structural concept for the digital longterm preservation

• Presentation of the Nestor "Kriterienkatalog vertrauenswürdige digitale Langzeitarchive"
• Data formats and standards, amongst others the characteristics of picture formats
  1. Raster graphics consists of pixels
     • compressed, e.g. TIFF uncompressed
     • uncompressed, e.g. TIFF group 4 (lossless), GPEG and GIV (lossy)
  2. Vector graphics describe pictures through geometric forms like lines, circles, etc.
• The VdW working group has published a list of questions which can support the user in the decision which format to use for which digital object

Existing archival systems

Discussion of existing archival systems

1. Kopal (kooperativer Aufbau eines Langzeitarchivs digitaler Informationen)
   • One softwaresystem DIAS (Digital Information Archiving System) developed at IBM and hosted at the GWDG
   • One hardwaresystem located at the GWDG
   • Individual modulated software: koLibRI (kopal Library for Retrival and Ingest, software package for the use of DIAS) developed at the DNB and the SUB
2. Prototype of the Bundesarchiv
3. Portico
   • commercial
   • permanent archive for reviewed scientific journals
4. Lockss
   • open source software
   • cooperate archival system based on replications for all digital objects

Web archiving

• Concepts
• Example: the web archive of the Deutscher Bundestag

Preservation planing

Preservation planing as one main functionality of the OAIS Model

• DELOS: Testbed for the evaluation of preservation planing strategies
• PLANETS: Preservation planing environment incl. PLATO (PLANTES preservation Planning Tool)

Summary

Digital longterm preservation is a process, which can not be solved by an institute alone, because the development and implementation of strategies is very complex and costly. Therefore, a cooperation between the different organizations is highly desirable.

Max Planck Digital Library

Tagged Image File Format

International Business Machines Corporation

Gesellschaft für Wissenschaftliche Datenverarbeitung Göttingen

Deutsche Nationalbibliothek

Staats- und Universitätsbibliothek