Semantic Web technologies have been applied in educational settings for different purposes in recent years, with the type of application being mainly defined by the way in which knowledge is represented and exploited. The basic technology for knowledge representation in Semantic Web settings is the ontology, which represents a common, shareable…

World-Wide Web-based instruction (WBI) has become a powerful tool in recent years. However, WBI utilizing a constructivist theoretical framework has not been explored. A database-driven WBI is the solution for this implementation. Another critical issue is the difficulty encountered in creating, editing, and maintaining WBIs, particularly for…

Allan Ridley has many interesting qualities, not least his determination. Though he is totally blind, he doesn't let that stop him pursuing his interests, whether he is water skiing or learning database design. When asked to tutor blind learner Allan Ridley, the author had to give a lot of thought to making the curriculum accessible. This article…