This paper describes the design and implementation of an object-oriented World Wide Web-based CAI (Computer-Assisted Instruction) system. The goal of the design is to provide a flexible CAI/ITS (Intelligent Tutoring System) framework with full extendibility and reusability, as well as to exploit Web-based software technologies such as JAVA, ASP (a…

This paper looks at the analysis leading to and design of a Web-based "hint system." The hints are designed to help middle-grade teachers participating in a mathematics professional development effort, called InterMath, achieve a high degree of success when working open-ended mathematical investigations. The model upon which InterMath is…

Providers of online information with a high visual content face an uncompromising dilemma--how to achieve fast delivery while maintaining good picture quality. As storage space or bandwidth increases, the demands placed on it by the user are always two steps ahead. Since limited bandwidth for communicating images looks like it may remain a problem…

DCE (Distributed Computing Environment) is a collection of services, tools, and libraries for building the infrastructure necessary for distributed computing within an enterprise. This articles discusses the Open Software Foundation (OSF); the components of DCE, including the Directory and Security Services, the Distributed Time Service, and the…

Three Web search engines--Alta Vista, Excite, and Lycos--were compared and evaluated in terms of their search capabilities and retrieval performances using sample queries drawn from real reference questions. Findings indicated Alta Vista outperformed Excite and Lycos in both search facilities and retrieval performance, although Lycos had the…

The philosophy, design, implementation and evaluation of a World Wide Web-accessible Virtual Library Tour of Texas A & M University's Evans Library is presented. Its design combined technical computer issues and library instruction expertise. The tour can be used to simulate a typical walking tour through the library or heading directly to a…

Examines current limitations of Web-based learning systems (WBLS) in higher education and describes a prototype Web-based Asynchronous Synchronous Environment (WASE) that is designed to circumvent those limitations. Includes 10 figures and 2 tables. (AEF)

Discusses the importance of motivational effectiveness in Web design and highlights features of engaging children's Web sites. Describes the development of an instrument--the Website Motivational Analysis Checklist (WebMAC)--designed to evaluate children's Web sites using feedback from elementary school-age children. Discusses the procedures,…

Focuses on the pre-design questions that a Web site designer and client need to address. Discusses the why, who, what, where, and when phases of the Web site design process. Includes a Web Site Development Form to guide site designs through the first two stages of Web site development: specification and design. (AEF)

Presents technical issues, design considerations and resource sites to consider when designing a Web site. Discusses fonts; colors; screen resolutions; statement of purpose; audience; content; layout; size and number of images; spacing and emphasis; browser-supported features; grammar and spelling; revision/improvement; and testing. (AEF)

Reviews currently available instructional systems design models and describes a new design model for Web-based knowledge management (KM) systems, based on a living-systems approach, and the mechanisms it contains for accommodating change and growth. Illustrates the application of the phases of the model in the development of a KM system with…

Great increases in the availability of full-text publications on the Internet has posed many problems for librarians who must secure licenses to provide the online versions of these journals to their clients. Discussion includes steps taken to minimize the impact of these problems and maximize availability of online resources, as well as the…

Examines differences between the formal features of commercial versus noncommercial Web sites, and the relationship between Web page complexity and amount of traffic a site receives. Findings indicate that, although most pages in this stage of the Web's development remain technologically simple and noninteractive, there are significant…

Suggests that a faceted thesaurus should be used as the basis for organizing a small-scale institutional Web site. Contends that a faceted approach to knowledge organization can make the process of organization less random and more manageable. Reports on an informal survey of three Web sites, underscoring the problems of organization that can…

Describes the use of Spotfire, a starfield visualization tool, to generate interactive visualizations of log data, ranging from aggregate views of all Web site hits in a time interval to close-ups that approximate the path of a user through a site. Highlights current efforts and provides examples of the visualizations created in Spotfire.…