Distance education is a process of teaching and learning characterised by the separation of teacher and learner in time and/or place for most of the educational transaction, mediated by technology for delivery of learning content but with possibility of face-to-face interaction for learner-teacher and learner-learner interaction, and provision of two-way didactic communication. Distance is about the transactional distance and not the physical distance. It is a conceptual construct with two key dimensions: structure and dialogue. Programmes with more structure and less dialogue are considered to have more distance.