Describes the technical characteristics of Telidon, a second-generation videotex system developed in Canada and announced in August 1978, and discusses what has occurred since that time in planning field trials, developing information services, and in planning a coordinated development for Canada of this new technology. (Author)

A directory of 246 nonbibliographic data bases, which are also known as data banks and numeric data bases. Entries are arranged alphabetically by name of data base, followed by name of data base producer, subject content, and online vendor. This directory updates the listing published in Vol. 1, No. 4 of On-Line Review. (JPF)

This fourth update to the bibliography that was published as a supplement to the first issue of "Online Review" contains 441 references covering the period from mid-1979 to mid-1980. Permuted title (KWIC) and author indexes are included. (Author/FM)

Sixteen queries, performed on the two systems, resulted in 247 unique relevant references from EMCS and 559 from TOXLINE. The overlap varied considerably, from 6 to 50 percent. It is remarkable that TOXLINE, with nine subfiles specially compiled for toxicology, can be supplemented by EMCS, which in the present study delivered 31 percent of all the…

Describes the six tasks required in the development of an online database: analysis, design, programing, testing, loading, and documentation. Figures illustrate file formats, and a bibliography lists five sources. (FM)

Concentrates on the practical, everyday aspects of online search strategy, specifically offering ideas and comments on search strategies for STAIRS users. Included are tables listing the logical operators available on the system and the search level (document, paragraph, sentence, word) of each. (Author/JD)

Describes the design and development of the Reference Librarian Enhancement System (REFLES), a microcomputer based system for in-house data files. The REFLES prototype is described in its test form, followed by presentation of the working environment, problems, and evaluation of the current version. Future possibilities of REFLES are also…

Explains search commands for SERIDU, an online bibliographic search system developed at Brussels Free University. These commands and output formats are compared with Euronet commands (from which they were derived), with existing INFODOC storage system commands, and with the planned BIDULE system commands. An evaluation of SERIDU is included. (SW)

This is the first update of the bibliography on online information retrieval that was published as a supplement to Vol. 1 of this journal. Entries are divided into seven sections; within each section, they are listed alphabetically by author. Permuted titled (KWIC) and author indexes are included. (Author/JPF)

Europe's lag in databanks and online commercial availability is contrasted to its lead in numbers of bibliographic files. Intelligent use of new technologies such as Viewdata and the European Communications Satellite are expected to correct this imbalance. (RAA)

Discussion of online interactive search systems focuses on developments in the area over the past decade, the possibility of the end user undertaking online searching for him/herself, the changing role of the information scientist, implications for the information manager, and electronic publishing. Eight references are included. (EJS)

Reviews the development of a fault tolerant database processor system which replaced OCLC's conventional file system. A general introduction to database management systems and the operating environment is followed by a description of the hardware selection, software processes, and system characteristics. (SW)

Online information systems used by congressional legislators for administrative support, correspondence control, information retrieval, and electronc voting are presented. Expansion of these systems to permit public access is discussed. (RAA)

Lists organizations in the United States which sell or lease software or provide subscription service for on-line information retrieval from the full text of documents in user-provided data bases. (Author/CWM)

Lists questions to be used for information retrieval system evaluations and for information gathering in comparison of retrieval systems. (CWM)