Changes in the future role of occupational instructors which will be brought about by advances in educational technology are illustrated by the description of the Advanced Instructional System (AIS), a complex approach to occupational training which permits large-scale application of individualized instruction through the use of computer-assisted and computer-managed instruction. Currently being tested at Lowry Air Force Base, Colorado, the system does the following: (1) maintains a file of student characteristics, aptitude scores, indexes of reading ability, educational background, and other selected data; (2) selects the best media mix for each student and presents the course material; (3) records student responses and maintains a running progress record; (4) develops and administers lesson prescriptions, tests, and remedial diagnostic training; (5) predicts the student completion date; and (6) evaluates and revises the course materials. The effect of the AIS on the instructor is to change his role from lecturer/testor to training guidance counselor and advisor to students, a role demanding full cognizance of all areas covered by the training program and the technical capabilities required to produce high-quality revisions to the computer-managed training materials as course content changes due to improvements or technological advances. (RT)