Concepts of Distance Education

just-in-time learning
"An approach to educational delivery in which small segments of learning are delivered when and where the need arises." Not based on fully understanding, but on specific problem-solving implementations. Response to need education and training needs in a rapidly changing environment. (Inglis, Ling, & Joosten (1999) p. 195)

learner autonomy
"Concept that learners have different capacities for making decisions regarding their own learning." Relates to the structure and interactive expectations of a distance education course. A key element in adult learning. (See Moore & Kearsley (1996) pp. 24-25, 204-205)

correspondence education
First generation in the evolution of distance education; with the advent of postal delivery in the mid 1880s, interaction between learners and teachers at a distance was possible for the first time. In the United States, correspondence became known later as "independent study" and "home study" before becoming recognized as part of the expanding field of "distance education." Interaction by surface mail is still widely used, especially in less developed countries. (See Moore & Kearsley (1996) pp. 20, 36, 199)

Michael G. Moore and Kay Shattuck (2005) as posted in International Teleconferencing Association site available in https://courses.worldcampus.psu.edu/public/faculty/DEGlossary.shtml