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Abstract

Index Medicus, the abstract periodical published by the National Library of Medicine, could until recently only be consulted either in its printed version or on-line (Medline). Several versions of Medline on CD-ROM are now available, and the Biomedical Working Group of VOGIN (the Dutch Association of Users of Online Information Systems) has prepared this detailed comparison. Although CD-ROM is becoming more popular, many people are still unfamiliar with the new medium, and a number of authors have discussed the advantages and disadvantages of CD-ROM when compared with its on-line and printed equivalents.

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Abstract

This article describes three important bibliographic databases in Latin America, two of which have been created by national library networks. In the networks shared cataloging has become increasingly important. The databases contain much cataloging information not available outside Latin America. During the last two years the national libraries of Venezuela and Chile have exchanged their data and furnished it to a library in Colombia which is beginning the automation process. The article describes the formation of the networks from the point of view of database building, and examines prospects for increasing exchanges of data in the region.

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Abstract

The database of the Research Libraries Group's Research Libraries Information Network contains some 25 million records in all USMARC formats for bibliographic and authorities data, as well as a number of additional files for specialized data. These records include source data from the Library of Congress and other national bibliographic agencies, and records contributed by RLG member institutions, and are used both for technical processing and in support of RLG's cooperative programs. Chinese, Japanese, Korean and Cyrillic vernacular records are included in the central database; work on Hebrew is in progress. Future developments will result in the addition of diverse kinds of data, including nonbibliographic data, to RLIN.