A module is any course that does not span the entire length of the payment period (semester). An example of courses offered in modules would be the accelerated online program.
For example: The spring semester consists of 15 weeks of instructional time. Jim is enrolled in an online program that contains three 5-week courses within the Spring semester, none of which span the entire 15 weeks. Because Jim's courses do not span the entire length of the Spring semester, he is considered enrolled in modules.