This report presents an instructional design model that was developed for use by the End-Users Computing department of a large pharmaceutical company in developing effective--but not lengthy--microcomputer training seminars to train office workers and executives in the proper use of computers and thus increase their productivity. The 14 steps of the instructional design model are described: (1) needs, goals, and priorities analysis; (2) resource analysis; (3) individualized delivery system design; (4) module scope, objectives, and sequence; (5) target objectives definition and analysis; (6) performance objectives definition; (7) lesson module preparation; (8) materials and media selection; (9) student performance assessment; (10) instructor preparation; (11) formative evaluation; (12) field testing and revision; (13) summative evaluation; and (14) installation and diffusion. Appendices include an instructional design model flowchart; sample lesson modules; instructor, observer, and student evaluation forms; and a course module design checklist. (11 references) (MES)