Getting a degree from a college or university can be a long and difficult task certain courses must be completed before other courses can be taken develop a network diagram in which every activity is a particular course that you must take for you degree program. The immediate predecessors will be course prerequisites don't forget to include all University College and departmental course requirements. Then try to group these courses into semesters or quarters for our particular school. How long do you think it will take you to graduate? Which course, if not taken in the proper sequence could delay your graduation?