Consequently, most repositories are coping by employing interim and less than desirable strategies, if they are 642-587 addressing digital preservation issues at all. For example, the simplicity and universality of printing to paper or microfilm come at the expense of great losses in the functionality of digital information. Migration strategies that involve reformatting of digital materials to a simple standard format usually eliminate the structure of documents and relationships imbedded in databases. Computation capabilities, graphic display, indexing, and other features often are lost, thus limiting future analytical potential. Normalization to standard formats is not always technically feasible and it usually is quite costly.
Archives and libraries must 642-812 also contend with entirely new forms of electronically-enabled discourse and new forms of artistic and cultural expression that do not have predecessors in the analog world. No current preservation method is adequate for preserving dynamic data objects from complex systems. There are no established conceptual models or technical processes for preserving multi-media works, interactive hyper-media, on-line dialogues, or many of the new electronic forms being created today. The archival requirements to preserve content, context, and structure and to maintain the capability to display, 642-845 link, and manipulate digital objects only heighten their software dependency.
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