Introduction: The IFLA functional requirements for bibliographic records model has had a major impact on cataloguing principles and practices over the past fifteen years. This paper evaluates the model in the light of changes in the wider information environment (especially to information resources and retrieval) and in information seeking…

A hierarchical extension to the American National Standard for Bibliographic Information Interchange on Magnetic Tape is defined and described. The accommodation of the extension within the existing standard is discussed, modifications to the existing standard are proposed, and applications of the hierarchical format are presented. (21 references)…

Online bibliographic and network-based information systems are starting to blur the boundaries that separated print documents. Two concepts emerge as a consequence: the union record, an entity that combines multiple catalog records for a single bibliographic item; and an information dossier, a hypertext-like information object built by linking…

Describes variations in current bibliographic databases in such areas as database organization, contents, authority control, and uses. The discussion covers the implications of these factors, optical disk technologies, and the Linked Systems Project for the future of national bibliographic databases. (nine references) (CLB)

Describes a survey of library systems and software vendors that examined the sources, management, and use of authority records in their systems and the functions of an authority control module within an integrated system. Several tables and graphs offer summaries and comparisons of vendors' offerings and capabilities. The questionnaire used is…