This is the first of a series of papers describing how the Open University, a large distance education institution, has embraced the Internet as a medium for supporting its students, tutors, academics, and administrators throughout the education process. This paper reports on a holistic approach to integrating technology into the teaching process which addresses how to provide necessary functions in effective formssome traditional, some new. It describes the development and structure of actual systems, which incorporate electronic student registration; electronic assignment submission, marking, and recording; electronic tutorials and other interaction; and electronic examinations. It describes and summarizes some of the findings of the evaluation of those systems, including student, academic, and administrator feedback. Finally, this paper reflects on the benefits of an integrated holistic approach in exploiting the Internet's potential to support distance learning on a massive scale. Subsequent papers in this series will address specific areas in detail: the student experience, the role of the tutor in an electronic environment, and the institutional perspective.