anyone who could help??

hi..

I have a project on ERP..pls help me out with the components reqd, the flowcharts and the coding of this project...since this is my first one..i am not sure of how to approach this one...thanks to all...regards.

User Requirements for ERP:

A. User requirement for Order Processing:

When any order for a product is received from any Dealer / Customer then:

1. The person who is going to process the order opens the system.
2. He will be asked to logon with a logon screen.
3. If he can successfully supply the credentials to the system, he will view the screen to enter data for the received purchase order. The data he will have to enter is:
a. Customer details like customer code or Name – Which can also be selectable, PO number, PO Date.
b. If the code for a customer does not exist, then option is shown to create customer master. By selecting this option the DEO (Data Entry Operator) can create the customer master.
c. If it is a counter sale or one time customer then just the name can be entered. If master for the customer for whom the name is entered does exist, then that customer’s data is shown otherwise entry for such customer is not made in master file but his details like address, Telephone number and email address can be entered. This can be used later on for any promotional activities.
4. DEO will enter purchase order lines which will contain product code or name, quantity, required date.
5. After all the order lines are entered the operator will click complete order button.
6. A screenshot of Order Acknowledgment will be shown to DEO. He can take the printout and give it to customer if required.
a. The OA will show expected delivery schedule for each order line.
7. If the delivery is immediate then DEO will be shown an option to print delivery ***challan and invoice.
a. He can print the DC and invoice. DC will be sent to packing and delivery section. Invoice will be given to the customer.
8. After customer makes the payment a receipt can be printed and given to customer if necessary.
9. DEO will close the application

***challan means a billing report sorta thing