Brief description of videotex systems is followed by recommendations for the design of database structure, command language, and screen format. How users search through the database is described and evaluations of the underlying tree structure are reviewed. Information sources on other aspects of videotex besides usability are listed. (MBR)

This paper examines the main issues in hypermedia navigation, proposes research questions, and suggests a methodology for resolving those questions. The paper begins with an overview of navigation and a discussion of design issues in hypermedia databases, including being lost in hyperspace, the use of hypermaps, proper balance between links and…

This paper presents an information retrieval system for delivering educational visual materials through the World Wide Web. The system is designed to meet the following user requirements: lecturers prefer direct control over their visual resources; lecturers demand a browser-based interface that will allow them to create and modify their online…

Support for Teachers Enhancing Performance in Schools (STEPS) is a World Wide Web and CD-ROM electronic performance support system (EPSS) designed for preK-12 and preservice educators to assist in designing and developing lessons, units, or curricula; this tool was developed around school reform and accountability initiatives in Florida. To…