Entwurf und Implementierung eines Softwarearchivs für die digitale Langzeitarchivierung

摘要

The Emulation strategy in digital preservation tackles the obsolescence of hardware, software and data formats by restoring the original usage environment of digital objects via emulation techniques. This means that supporting objects, such as operating systems or applications, have to be stored in a software archive. This thesis deals with the design of such an archive. First, some previous research results are outlined, with focus on the different types of supporting objects, and a concept called "View Path". Based on that, the responsibilities of a software archive are shown. These are the archiving of view path components, and the maintenance of emulated environments for visualization or migration of archived objects. Further, two major concepts for fulfilling these requirements are discussed, the dynamic generation and static archiving of emulated environments. The thesis concludes with the presentation of a prototypical architecture, based on Java EE. This architecture allows access to the archive by a web browser, a java applet provides access to the emulated environments.