1. Open Range Communications Mansoor Iqbal Deepthi Atluri Nawaz Ikram

2. Business Requirement • The system should allow new users to register, create their accounts and place the order for internet/VOiP services. • Should provide functionality of complete “Order To Cash” (OTC) process in the back-end system. • Employees should be able to edit customer Information, update their billing account and send information about promotions and discounts.

3. Business Requirement • Employees should able to maintain the inventory records for modems and installation equipments. • The existing customers should be able to place service requests , modify their information and be able to pay their bills online.

4. Context Diagram

5. Level 0 DFD External Entity: Customer Employee Processes: Customer Processing Oder to Cash (OTC) Process Employee Processing Inventory Adjustments Datastore: D1 Customer Data D2 Packages Data D3 Order Data D4 Invoice Data D5 Delivery Data D6 Employee Data D7 Inventory Details

6. Level 0 DFD

7. Level 0 DFD

8. Level 1 DFD External Entity: Customer Processes: Customer Processing Customer Account Conformation Packages search Order Create Create Invoice Create Shipment Datastore: D1 Customer Data D2 Packages Data D3 Order Data D4 Invoice Data D7 Inventory Details

9. Level 1 DFD (OTC Process)

10. Level 2 DFD External Entity: Customer Processes: Is modem available Internally Warehouse Datastore: D1 Customer Data D7 Inventory Details

11. Level 2 DFD

12. Level 1 DFD (Inventory Adjustments) External Entity: Employee Processes: Modem Received From Customer Update Inventory Datastore: D7 Inventory Details

13. Level 1 DFD (Inventory Adjustments)

14. Conclusion • Comments • Thoughts • Suggestions