Charles J. Guenther, Jr., is Associate Projessor ofEngineering and Technology at St. Louis Community College at Meramec. Much of the work reported here was performed while on sabbatical leave (Summers 1995 and 1996) granted by St. Louis Community College. The author also received support,from the Illinoislnstitute of Technology’s Centerfor the Study ofEthics in the Professions.