It is critical that students learn how to retrieve useful information in hypermedia environments, a task that is often especially difficult when it comes to image retrieval, as little text feedback is given that allows them to reformulate keywords they need to use. This situation may make students feel disorientated while attempting image…

This study investigates the relationships between the use of a zoom tool, the terms they supply to describe the image, and the type of image being viewed. Participants were assigned to two groups, one with access to the tool and one without, and were asked to supply terms to describe forty images, divided into four categories: landscape, portrait,…

Introduction: This article reports on the adequacy and specific characteristics of 5th grade students' use of Web literacy skills and strategies after completing a programme in which these skills and strategies were the focus of attention. Method: Data were collected from twenty-one student pairs' Web use during six assignments, and recorded with…

This evaluation of the DIALOG Medical Connection, a new user-friendly system that provides access to several online health sciences databases, describes searching, changing databases, documentation, online help, access, costs, and training, and compares the features of this system with those of other systems that are currently available. Three…

The last installment in a three part series compares commands and features for accessing and manipulating the results obtained from the DIALOG and QUESTEL information systems. Highlights include enhancements to syntax and defaults, options for output arrangement and retrieval, reformatting of selected data, memory, unique features, and examples.…

Second article in a three-part series focuses on enhancements of search commands and features in the DIALOG and QUESTEL information systems. Highlights include system responses and capacities (aids to searching); search commands and features (proximity searching, field specification, limits); concatenating complex requests; and saving search…

Explains Web search agents as tools that apply intelligent agent software technology for the purpose of automating, improving, and speeding up online search operations. Topics include intelligent desktop agents; search agent marketplace; comparing Web search agents; subjective evaluations; and use by researchers. (LRW)

Report #27 in this series discussed the 'wiki' method of online information-sharing, and its educational uses. A wiki is browser-based collaborative writing environment, in which a community may amass and exchange information on a particular topic, and to which anyone may contribute without having Web programming skills. In the current study,…

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)

Identifies five design requirements for electronic encyclopedias, based on the content and structure of printed encyclopedias and the uses that people make of them. Three existing hypertext programs (Owl International's Guide, HyperCard, and HyperTIES) are compared in terms of their ability to satisfy these design requirements. (CLB)

Compares OCLC, WLN, and RLIN in terms of the composition of the databases, indexes and searching, special uses for public services, costs, and documentation. Selected bibliographies of general public service uses and interlibrary loan applications are provided. (CLB)

Describes and compares three versions of the ERIC database that are available on optical data disks: (1) DIALOG OnDisc ERIC; (2) OCLC Search CD450; and (3) SilverPlatter ERIC. The database contents, software and search commands, hardware requirements, notable features, and costs of each version are discussed. (CLB)

Discusses the variety of search command languages among online systems and provides suggestions for creating online information retrieval manuals using a database management system such as dBASE III PLUS. An online systems comparison chart is included for INFOGLOBE, INFOMART, DIALOG, QUICK LAW, and REUTERS TEXTLINE. (LRW)

Describes the downloading capabilities of the WESTMATE version of the WESTLAW retrieval system and compares WESTLAW to LEXIS in terms of downloading functions and costs. The steps involved in WESTLAW access with standard communications software are outlined, and sample screen displays are appended. (CLB)

Discusses the use of optical disk technology in online searching and compares three versions of the ERIC database currently available on optical disk in terms of hardware requirements, ease of installation, scope and cost of the system, search procedures, displaying and printing results, and documentation and user support. (CLB)