Describes six leading numeric databank services and compares them with bibliographic databases in terms of customers' needs, search software, pricing arrangements, and the role of the search specialist. A listing of the locations of the numeric databanks discussed is provided. (CLB)

Describes and compares the nine online databases that index the Washington Post. Points of comparison include materials that are excluded from the database, citations to excluded materials, citation formats, search vocabularies and strategies, full-text searching, cross-file searching, and search costs. (5 references) (CLB)

First of a three-part series provides an overview of pre-enhancement DIALOG and QUESTEL information systems including their histories, databases, query languages, and services. Description of implementation of DIALOG Version 2 and QUESTEL PLUS and a general comparison of system features provide a preview of specific comparisons in part 2. (EJS)

Focuses on indexing refinements in major life science databases--those specializing in biological/biomedical literature coverage--which influence cross-life searching decisions. Tables included highlight database descriptions, comparisons in coverage, ease of access (indexing of secondary concepts or search modifiers), chemical substance indexing…

This paper analyzes 27 English language published articles and monographic works which present comparisons of the online systems of OCLC and Research Libraries Group (RLIN) and discuss their effect upon library programs. A description of the literature, conflicting perceptions, and system advantages and disadvantages are highlighted. (25…

The relative retrieval performances of the CA Integrated Subject File (CAISF), CA Condensates, and a Merged File created from these two data bases were measured. Retrieval performance is reported in terms of recall, precision values, and costs. (Author/JB)

Results of this study comparing coverage and features of Psychological Abstracts and National Institute of Mental Health (NIMH) online databases demonstrate a 49 percent citation overlap between the files. A complementary, not competitive, relationship is indicated by comparing citation overlap, journal coverage, descriptive indexing, treatment of…

Describes experiment which compared two techniques used for evaluating and comparing database coverage of a subject area, e.g., "bibliography" and "subject profile." Differences in time, cost, and results achieved are compared by applying techniques to field of volcanology using two databases, Geological Reference File and GeoArchive. Twenty…

Suggests standards designed to guide potential database users through a systematic evaluation process to choose database appropriate for particular application. Comparison standards are provided for database content (scope, completeness, source coverage, selection/evaluation, redundancy, references); database systems (documentation, accessibility,…

Using as examples four computerized database systems operating in schools of medicine, this article examines ways in which software designs differ and some of the operating implications of these differences. (Author/GK)

Criteria for suitable research designs for use with large databases are suggested and analyzed. The advantages and disadvantages of several types of quasi-experimental designs are compared. Examples are taken from the authors' research with data from the Manitoba Health Services Commission. (Author/AL)

Evaluates criminal justice coverage in on-line, commercially available data bases using both "Hot Topics" and general profiles. Charts show topics covered, periodicals indexed by each data base, and recommendations for which data base to use for various topics; appendixes present indexing terms used by and annotations for selected data…

To compile a list of recommended electronic databases for rural libraries, public library patron questions received by the Arizona State Reference Center were searched on ten databases. The results indicated Books in Print, Magazine Database, ABI/INFORM, Public Affairs Information System (PAIS), and Government Printing Office (GPO) Publications…

Describes a study that compared the coverage of the nursing profession, subject heading specificity, and ease of retrieval of the MEDLINE and Nursing & Allied Health (CINAHL) online databases. The strengths and weaknesses of each database are discussed and hints for searching on both databases are provided. (four references) (CLB)

Compares three methods of data entry available to database producers--keyboarding, optical scanners, and electronic input--in terms of turnaround time, accuracy, and cost. It is concluded that, although the trend is toward electronic submission, all three methods will remain as viable options in the foreseeable future. (CLB)