Next, a level 0 DFD was created but the names of the processes, data stores, and additional data flows were not added. Complete the level 0 DFD using the components shown in the table below (see next page). Use all the components. You may use some of the data flows more than once.

Below is a context diagram for a course enrollment system. Payment Class Roster Professor Course Enrollment System Student Course Request Receipt Student Schedule Enrollment Statistics Registrar Processes Enroll Student in Course Collect Student Fee Payment Produce Student Schedule Produce Class Roster Produce Enrollment Summary Report Data Stores Additional Data Flows Student Class Records Payment Information Student Payments Student Class Record Student and Course Data Student Schedule Payment Student Course Request Receipt #2 #1 #3 #7 #4 #5 D #6 D #8 #9 #11 #10 #13 #12 Class Roster Enrollment Statistics Professor Registrar