Reports on the design of an automated query system to help pharmacologists access the Derwent Drug File (DDF). Topics include knowledge types; knowledge representation; role of the search intermediary; vocabulary selection, thesaurus, and user input in natural language; browsing; evaluation methods; and search statement generation for the World…

Describes the design, implementation, and preliminary evaluation of three synchronous distributed learning prototype systems: Co-Working System, Working Along System, and Hybrid System. Each supports a particular style of interaction, referred to a socio-activity learning model, between members of student dyads (pairs). All systems were…

Focuses on the design, development, and maintenance of Web-based resource sites developed for specific target audiences. The case study described is a site developed to support Web-based instruction in both corporate and educational settings; however the principles are also applicable for Web resource sites developed for many other content areas.…

Various methods for retrieving chemical structure information on the World Wide Web are discussed. Although graphical plug-in programs provide more search capabilities, users first have to obtain a copy of the programs. Tripos's WebSketch and ACD Interactive Lab adopt a different approach; using JAVA applets, users create and display a structure…

Presents an overview of "Q&A," a Web-based question-answering system that mediates interactions between an expert and a question-asking user. Discusses the system's components and features; details of the implementation; evaluation; and future work. (AEF)

Describes a scalable system for searching heterogeneous multilingual collections on the World Wide Web. Details Searchable Database Markup Language (SearchDB-ML) for describing the characteristics of a search engine and its interface, and a protocol for requesting word translations between languages. (Author)

The World Wide Web has been regarded as the most important information technology revolution of the 1990s. It not only has drastically changed the nature of information technology in business and education, but has also imposed a great challenge to developers of information systems (IS) curricula worldwide. To provide IS students with an education…

The growing volume of heterogeneous and distributed information on the World Wide Web has made it increasingly difficult for existing tools to retrieve relevant information. To improve the performance of these tools, this paper suggests how to handle two aspects of the problem. The first aspect concerns a better representation and description of…

This paper provides an analysis of old and new programming tools for development of client/server programs, particularly World Wide Web-based programs. The focus is on development of educational systems that use interactive shared workspaces to provide portable and expandable solutions. The paper begins with a short description of relevant terms.…

This paper describes the design of a Web-based learning environment for leadership facilitators in a United States military organization. The overall aim of this project was to design a prototype of an online learning environment that supports leadership facilitators' knowledge development in the content area of motivation. The learning…

This paper reports on the results and future research work within the paradigm of Configurable Collaborative Distance Learning, called Espacios Virtuales de Apredizaje (EVA). The paper focuses on: (1) description of the main concepts, including virtual learning spaces for knowledge, collaboration, consulting, and experimentation, a…

This paper describes the authors' experiences in developing an all-in-one virtual university. The Defense Acquisition University (DAU) is a consortium of Department of Defense education and training institutions and organizations that provides mandatory and assignment-specific courses for military and civilian personnel serving in 11 acquisition…

This paper describes Arthur, a World Wide Web-based instruction system that provides adaptive instruction to accommodate learning style in order to achieve a significant difference when technology is applied to instruction. The design of Arthur is discussed, including considerations related to the learning experience, adapting instruction, and…

The SAGRES system is an educational environment built on the World Wide Web that facilitates the presentation of the information bases of a museum in a way that is adapted to the individual characteristics of each visitor. The interaction with the system may occur individually or in groups of students. The system also offers resources to support…

In this paper, a Web-based learning environment developed within the project called Virtual Learning Spaces (EVA, in Spanish) is presented. The environment is composed of knowledge, collaboration, consulting, experimentation, and personal spaces as a collection of agents and conventional software components working over the knowledge domains. All…