1. Activity 4 Data flow diagram of a school attendance system
1. The diagram below shows the context diagram (level 0 DFD) of a school attendance system. Insert the following data flow lines into the context diagram.
• Smart card ID
• Class attendance record
• Attendance report
• Query request
• Updated attendance record

2. Activity 4
Data flow diagram of a school attendance system

3. Activity 4 Data flow diagram of a school attendance system
2. Suppose the following processes and data stores are identified in the school attendance system:
1.0 Authenticate student D1 Student file
2.0 Verify class attendance record D2 Student photo file
3.0 Update attendance record D3 Attendance file
4.0 Process attendance report
Complete the following level 1 DFD for the school attendance system.

4. Activity 4
Data flow diagram of a school attendance system

5. Activity 4
Data flow diagram of a school attendance system