Discusses downloadable executable content, or mobile code, on the World Wide Web; evaluates the security features offered by the Java and Safe-Tcl programming languages; and describes the basic mechanisms of each of the proposed security models. Presents current implementations, as well as upcoming extensions, and evaluates their efficiency and…

One of the problematic issues in the content development for learning environments is the process of importing various types of course material into the environment. This paper describes a method for importing material into the A&O open learning environment by introducing a material model for metadata recognized by the environment. The first…

This paper presents aspects of modeling, authoring, and presenting structured documents corresponding to teaching material presented in the World Wide Web. In this context, the importance of providing the formalization of the structure of the documents using Standard Generalized Markup Language (SGML) is discussed. Next, specifications for…

The construction of a very fast network backbone between all Scottish universities, in conjunction with the formation of a common core curriculum for Scottish medical schools teaching child health, has provided the schools with an opportunity to provide collaborative, computer assisted learning (CAL) across the World Wide Web, delivered by a…