please provide a detailed answer

7.35. Refer to Figure 7-23, which contains drafts of a context and level-0 DFD for a university class registration system. Identify and explain potential violations of rules and guidelines on these diagrams. Context Diagram FIGURE 7-23 Class registration Exercise 735 Class Schedule Student Course Request Class Registration System List of Courses Possible Classes Scheduled Classes Departmer D1 Roster of Classes Level-0 Diagram 1 3 Course Request Class Schedule From Student TO Student Receive Course Request Check for Availability Course Request Scheduled Classes Possible Classes 2 List of Courses From Department D2 Receive Course Lists Class Roster