A cost analysis of 411 on-line bibliographic search requests was conducted. The average cost was $28.41 exclusive of telephone line charges. (Author)

This investigation shows that search keys derived from personal author names possess a sufficient degree of distinctness to be employed in an efficient computerized interactive index to a file of MARC II catalog records having 167,745 personal author entries. (8 references) (Author)

Gives an overview of MEDLARS II as an example of a major bibliographic processing system that supports on-line access to a number of very large files, has efficient throughput, and is operated on a single large-scale computer. (Author/PF)

Examines design functions of present file organizations in the context of available data storage devices and identifies current developmental trends. (Author/RAA)

Provides an overview of videotex and teletext systems under development or being marketed in the United States and Europe. Current trends indicate a diminishing participation by librarians and information scientists in information display technology. Seven references are listed. (RAA)

The background and functional capabilities of Stanford's library automation system and the hardware environment in which it operates are described. Prospects for extending BALLOTS to network use are summarized. (Author/PF)

Describes operational use of on-line field access, a powerful improvement upon search key access to on-line records and a viable alternative to full key word access; and discusses some of the questions considered at Northwestern University Library during a redesign of the technical services modules of the Northwestern On-Line Intergrated System…

Presents MARC database statistics for use in planning and processing files, selection of subsets, and estimating file growth rates. Statistics are provided on record length, field tag occurrence, data element length per field tag, and distribution of records by Dewey Decimal Division and Library of Congress class code. (Author/RAA)

Reports the results of a study performed to determine preferred and effective usage of search keys utilized by OCLC users. The study used the research library facilities of Ohio State University to examine information retrieval behavior for acquisitions and cataloging information. (RAA)