A.DATA FLOW DIAGRAM LEVEL 0 DFD
Authentication
Log in
LEVEL 1 FOR MONEY TRANSACTION Money order Log in
Post office management system
Sender details
Receiver details Amount details
Receiving detail Parcel services Amount details
LEVEL 2 FOR POSTAL DETAILS
Register Post
Register Details
RDI money post Log in
RDI money Stamp Sales Details
Postcard details
Inland letter
LEVEL 1 FOR MONEY TRANSACTION Money order
Data base
Report
Money Transactions
Database
Parcel services
Report
LEVEL 2 FOR POSTAL DETAILS
Register Post
Postal details
Speed post
Sales Details
Database
Report
Database
Report
Database
Report