Corresponding to Problem and Exercise 7.35. Refer to the attached Adobe PDF document, NOT the textbooks Figure 7-23 on page 215. The Context DFD and Level-0 DFD depict a university class registration system. Identify and explain potential violations of rules (Tables 7-2 and 7-3) and guidelines (pg. 189) on these diagrams. There are 5 errors.

Here are some exceptions in the diagram that are NOT errors (if you list them, they will NOT count as an error): While the Context DFD is always numbered zero (as the attached diagram is), the text shows Level-0 DFDs with processes numbered as 1.0, 2.0, etc. (i.e., a decimal number with a .0). That the attached diagram has processes numbered without a X.0 format is NOT an error. The text shows Gane and Sarson process symbols with a line drawn about 20% from the top, with that section shaded in. That the attached diagram doesnt is NOT an error (indeed, MS Visio doesnt draw them that way). The text shows Gane and Sarson data store symbols also with a line drawn about 25% from the left of the symbol, with that section shaded in. That the attached diagram doesnt is NOT an error.

Problem 2: CONTEXT DFD Course 0 Class Registration System Student Department List of Classes Class Schedule Problem 2: Level-0 Diagram Class Schedule Course Request Student Student Receive Course Request Check for Availability Course Request Possible Classes List of Classes Scheduled Classes Department Receive D1 Class Roster Courses Lists List of Instructors