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)

This study compares results of searching full text of journal articles available on standard inverted file systems with searching of various parts of a document's surrogate. Relative recall and precision ratios for four search methods (full text, abstract, controlled vocabulary, bibliographic union) are reported. Search topics are appended. (14…

Benefits associated with private file services offered by online system hosts in the United States and Europe are outlined, noting currently available services, private file design, file input, costs and charges, service comparisons, security, and videotex services. Three references are included. (EJS)

The problems faced in accessing the contents of online bibliographic data bases are assessed, and current training techniques are summarized and evaluated. A new training program, which delivers training to the trainee's home terminal, simulating interactive retrieval systems that search files and provide messages and displays, is described. (JPF)

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…

Suggests ways to increase precision when searching full text files on BRS, Mead Data Central and DIALOG. All of the techniques are based on achieving repetition of central concepts as expressed in natural language. Schematic representations of strategies and sample searches on each of the three systems are provided. (10 references) (CLB)

Profiles database produced by National Council on Family Relations' (NCFR) Family Resource and Referral Center available through Bibliographic Retrieval Services and Dialog. Highlights include file description, unique aspects (communication network, Human Resource Bank, Idea Bank), keywords in NCRF database and ERIC, subject covered, sources,…

Describes a method of organizing the hypertext software files in a database containing legal information on housing discrimination to prevent the user from becoming disoriented in the system. The expert system of which the database is a part is explained, and the disorientation problem is discussed. (six references) (LRW)

Describes use of the software ADABAS (general purpose database management system) and NATURAL (interactive programing language) in development and implementation of an information retrieval system for the National Television and Radio Network of Israel. General design considerations, files contained in each archive, search strategies, and keywords…

This article examines each of four purposes of ONTAP ERIC, designed by Dialog Information Systems to provide online training and practice for database searchers and finds only one of them to be fulfilled by the file. Problems discussed include conceptual deficiencies and design faults. Recommendations for improvement are made. (EJS)

Reports on a study designed to ascertain the occurrence of 10 terms from the field of urban planning in 55 databases available on the DIALOG system by searching the terms in the Dialindex file. Total postings and postings in 10 top ranking databases for each term are shown. (eight references) (MES)

The Drug-Interface, prototype system built to facilitate retrieval of drug related information, automatically connects to DIALOG Information Retrieval Service via available networks, aids user in formulating and/or revising search strategy, sends query to DIALOG, displays results of search, and downloads relevant pieces into Macintosh data file.…

Describes the development of a software system, SIMPR (Structured Information Management: Processing and Retrieval), that will process documents by indexing them and classifying their subjects. Topics discussed include information storage and retrieval, file inversion techniques, modelling the user, natural language searching, automatic indexing,…

Describes a two-phase stemming algorithm which consists of word root identification and automatic selection of word variants starting with same word root from inverted file. Use of algorithm in book catalog file is discussed. Ten references and example of subject search are appended. (EJS)

Examines possible reasons for the slow adoption of full text primary literature online by users. Areas discussed include the lack of complete online files, competition with better known sources, isolation of full text files, and the slow adoption of online services in general. Possible future developments are discussed. (three references) (CLB)