High Level Design of Web-Based Environments for Distance Education

This paper presents an approach to Web-Based learning environment authoring based in a high level description and in the use of reusable instructional components. These components have been previously categorised in a set of knowledge domains according to its instructional, didactic and pedagogical properties. Learning environment design is carried out using a description written in an SGML-derived language called PALO. PALO allows describing a variety of instructional scenarios that can be instantiated with a certain content matter using references to the domain model. This description is then turned into a Web-Based scenario by means of a compilation process. 1 M. Ortega and J. Bravo (eds.), Computers and Education in the 21 century, 79-81.  2000 Kluwer Academis Publishers. 1 2 Miguel Rodríguez-Artacho, Ma Felisa Verdejo