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In the interest of developing a conceptual framework for distance education, the authors describe the use of systems theory concepts in designing, implementing, and evaluating a distance education program. They describe input, throughput, and output factors used in creating and operating the program, as well as the incorporation of feedback in making modifications to the program. The systems perspective allowed the authors to better understand the interaction of variables affecting the operation of the program and where changes can be made to address problems and enhance student learning.
Potts et al. (Sat,) studied this question.