Select Courses to TeachBrief Descri

Select Courses to Teach
Brief Description
This use case allows a Professor to select the course offerings from the course catalog for the courses that he/she is
eligible for and wishes to teach in the upcoming semester.
Flow of Events
Basic Flow
This use case starts when a Professor wishes to sign up to teach some course offerings for the upcoming semester.
1. The system retrieves and displays the list of course offerings the professor is eligible to teach for the current
semester. The system also retrieves and displays the list of courses the professor has previously selected to
teach.
2. The professor selects and/or de-selects the course offerings that he/she wishes to teach for the upcoming
semester.
3. The system removes the professor from teaching the de-selected course offerings.
4. The system verifies that the selected offerings do not conflict (i.e., have the same dates and times) with each
other or any course offerings that the professor has previously signed up to teach. If there is no conflict, the
system updates the course offering information for each offering the professor selects (i.e., records the professor
as the instructor for the course offering).
Alternative Flows
No Course Offerings Available
If, in the Basic Flow, the professor is not eligible to teach any course offerings in the upcoming semester,
the system will display an error message. The professor acknowledges the message and the use case ends.
Schedule Conflict
If the systems find a schedule conflict when trying to establish the course offerings the Professor should
take, the system will display an error message indicating that a schedule conflict has occurred. The system
will also indicate which are the conflicting courses. The Professor can either resolve the schedule conflict
(i.e., by canceling his selection to teach one of the course offerings), or cancel the operation, in which case,
any selections will be lost, and the use case ends.
Course Catalog System Unavailable
If the system is unable to communicate with the Course Catalog System, the system will display an error
message to the Student. The Student acknowledges the error message, and the use case terminates.
Course Registration Closed
When the use case starts, if it is determined that registration for the current semester has been closed, a
message is displayed to the Professor, and the use case terminates. Professors cannot change the course
offerings they teach after registration for the current semester has been closed. If a professor change is
needed after registration has been closed, it is handled outside the scope of this system.
Special Requirements
None.
Pre-Conditions
The Professor must be logged onto the system before this use case begins.
 Copyright IBM Corp. 2004 Page 16
Section 1: Course Registration Requirements
Post-Conditions
If the use case was successful, the course offerings a Professor is scheduled to teach have been updated. Otherwise,
the system state is unchanged.
Extension Points
None.