Draw an interface structure diagram (ISD) for an online university system. The system should enable the staff of each academic department to examine the courses offered by their department, add and remove courses, change information about them (e.g. the maximum number of students permitted). It should permit students to examine currently available courses, add and drop courses to and from their schedules, and examine courses for which they are enrolled. Department staff should be able to print a variety of reports about the courses and the students enrolled in them. Develop the interface standard (metaphor, objects, and actions) for the system. Criteria Identification of interfaces Identification of interface links Interface metaphor Interface object(s) Interface action(s)

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