Digital Preservation in Libraries by Unknown

Author:Unknown
Language: eng
Format: epub
Tags: LAN025040 Language Arts & Disciplines / Library & Information Science / Collection Development
Publisher: American Library Association

Transfer

An e-book begins its life with a vendor or publisher that has the right to provide the data that makes up the book. After the licenses have been signed, processes are set up to facilitate the transfer of the licenced materials to Scholars Portal. This typically involves a transfer of book files and metadata from a provider’s FTP site or the sending of files to a local FTP site by the provider. Once the files are received, they are checked and the loading process begins. Loaders are scripts customized to providers that are run against received files, normalizing metadata from the source to the Books Interchange Tag Suite (BITS) standard and unpacking and organizing the files into individual book titles for upload into the platform. As part of the initial preservation workflow, the e-book preservation process will compare the file size of files on the originating site to the file size of the received files as a basic integrity check. Checksums will be generated for all received files upon receipt. While it would be ideal to have producers create checksums or apply the BagIt standard for transfer, it is currently beyond our ability to enforce such an approach. The future negotiated use of web-based deposit tools, however, might enable such a process to take place in order to provide greater proof of integrity during transfer. In general, Scholars Portal receives e-book files comprising the book either in a single PDF file or split into chapters, or a full-text XML file plus figures, in addition to publisher-supplied descriptive metadata and, potentially, supplementary files. All of these together comprise the e-book object.

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