Abstract
Developing quality may be the most difficult and costly task of developing a computer based courseware. Despite this, little has been done to support the reuse of multimedia learning material in a coherent and systematic way. In this paper, we propose a particular way of structuring a courseware to conform Lessons, Units and Courses in order to facilitate the use of the same material in different situations as well as the use of the material in other lessons. This is based on structuring a lesson's computer-based learning material as a "Didactic Network". A Diactic Network is a semantic network which represents the lesson. Although this approach was not developed exclusively having the wireless and mobile scenario in mind, it is a good example of developing courseware which should be used in different situations, including the mobile scenario.
