Document flow diagram

1
Document flow diagram
Example Purchasing System
Purch. Dept.
Order
Supplier
Invoice
Stores
Delivery note
Delivery note
System boundary
2
Context Diagram
Account Holder
Withdrawal Acknowledge
Bank Payment System
Cheque/Withdrawal Slip
No Data stores
3
First Level Diagram
Account Holder
1 Verify A/C Balance
Valid Balance
Withdrawal Acknowledge
Cheque Withdrawal Slip
Current Balance
New Balance
2 Debit Withdrawal Balance
Account Holder
4
Illegal Data Flows
E1
E1
D1
5
Another Common error
Process 1
?
Read Only ?
6
Repeaters

• Ignore the following sections
• Agent oriented system
• Data mining
• System Testing, implementation and maintenance

Removed
7

• Intro. to Object Modeling and Object Development
  methods

Removed from the Syllabus

• Separate Module in the 2nd Year
• Introduced in Modeling Methods
• Section

8
Sections newly introduced

• Types of Information Systems Available
• Project Management
• Application Architecture and Modeling