By Prof. Dr. Uwe M. Borghoff, Peter Rödig, Lothar Schmitz, Jan Scheffczyk (auth.)

Key to our tradition is that we will be able to disseminate info, after which keep and entry it through the years. whereas we're speedily advancing from weak actual recommendations to more suitable, electronic media, keeping and utilizing information over the longer term comprises complex study demanding situations and association efforts.

Uwe Borghoff and his coauthors tackle the matter of storing, analyzing, and utilizing electronic facts for classes longer than 50 years. They in short describe a number of markup and rfile description languages like TIFF, PDF, HTML, and XML, clarify an important thoughts corresponding to migration and emulation, and current the OAIS (Open Archival info approach) Reference version. to counterpoint this historical past info at the expertise concerns the authors current the main suitable foreign maintenance tasks, equivalent to the Dublin center Metadata Initiative, and reports from pattern initiatives run by way of the Cornell college Library and the nationwide Library of the Netherlands. A rated survey record of obtainable platforms and instruments completes the book.

With this vast evaluate, the authors tackle librarians who defend our electronic background, computing device scientists who strengthen applied sciences that entry info, and knowledge managers engaged with the social and methodological necessities of long term info access.

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The following discussion of concrete strategies for media migration is based on the classification from CCSDS (1999). , to create a perfect replica without changing either the format or a single bit of the content. In many cases, refreshing in the true sense (that is, refreshing the original) is not possible. Write-only CD-ROMs and DVDs are examples of that. Since a computer cannot tell the difference between the original and a replica, this is no problem. Refreshing is a preventive action taken in order to avoid losses of information due to physical effects, like de-magnetization of tapes.

Among other things, contracts with Producers have to be worked out, the completeness and authenticity of an SIP have to be established, SIPs must be transformed into AIPs, and Descriptive Information corresponding to the AIPs has to be created. Finally, the AIP is passed on to the Archival Storage process, and the corresponding Descriptive Information to the Data Management process. Storage, maintenance of the bit-stream and the retrieval of the AIPs are responsibilities of the Archival Storage process.

It also makes sense to reduce costs by cooperation and division of functions: Common standards are one aspect, the apportionment of complementary focal points is another. 6. Expenses can be either borne exclusively by the state. , by paying fees for lending and other services. Authors who want their works to be preserved might well be willing to contribute to ingest costs. By standardizing input formats for both documents and metadata, the archiving costs can be further reduced. 7. Regulations should balance the legitimate interests of all shareholders (authors and publishing companies, libraries and archives, scientists, and the general public).

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