This paper describes the development of hypertext based open-learning and assessment materials for the teaching of software engineering. The system, created in the School of Computing and Information Systems at the University of Sunderland is available via the WorldWideWeb (the Web) and permits the delivery of the teaching material over the global academic computer network, the Internet (the Net). The system permits the incorporation of CASE tools into the hypertext environment to facilitate practical S.E. tutorial activity Current practices in teaching Software Engineering at Sunderland are reviewed along with the problems they present such as high staff/student ratios and low contact time between staff and individual students. The teaching materials and modes of delivery are discussed and the rationale for the development of the new system presented State-of-the-art networking technology has been used for the preparation and delivery of the new material. A review of the enabling technology and reasons for its adoption is given as well as a description of the finished delivery system and an account its development Whilst the original teaching material was appropriate for traditional methods of delivery, it had to be radically altered for the new system. The structure of the new system, its hypertext nature built-in tutorial exercises and self assessment modules are presented. Transactions on Information and Communications Technologies vol 7, © 1994 WIT Press, www.witpress.com, ISSN 1743-3517