Computer E-ssentials Group : Will Howell Tausif Rajkotwala Komal Chandarana

Business Requirements Provide online customer access to assemble and purchase components Track customer information Generate Sales and Inventory Reports Provide billing process Provide product search capability Track inventory count and reorder value

Context Diagram

Level 0 DFD

Level 1 – Customer Info DFD

Level 1 – Reports DFD

Level 1 – Customer Order DFD

Level 2 – Order Confirmation DFD

Customer Information Processing System Component Processes External Entity External Entity 1.0 Customer Information Processing 2.0 Order Processing Customer EMPLOYEE 3.0 Manage Inventory 4.0 Report Processing D1 Inventory D3 Orders D2 Customer Data Database

Structure Chart

Entity-Relationship Diagram Contains Have is Updated by Updates

Entitys and Attributes Entity: Customer: CustomerID CustomerName Username Password Secret Question Answer Address City State Zipcode Phone No E-mail CreditCardNo Entity: Inventory: InventoryID InventoryName InventoryModelNo InventorySerialNo InventoryAmount InventoryQty Entity: Orders: OrderID CustomerID OrderReciptNo OrdertDate OrderStatus Entity: Order-Product: OrderId InventoryId InventoryQty OrderAmt 12

Physical Design Customer (Cust_ID, Cust_LastName, Cust_FirstName, Cust_Username, Cust_Password, Cust_Que, Cust_Ans, Cust_Address1, Cust_Address2, Cust_City, Cust_State, Cust_Zip, Cust_Phone, Cust_e-mail, Cust_CreditCard ) Orders (Order_ID, Cust_ID, Order_Date, Order_ReciptNo, Order_Status ) Order-Product (Order_ID, Inventory_ID, Inventory_Price, Order_Qty ) Inventory (Inventory_ID, Inventory_Name, Inventory_ModelNo, Inventory_SerialNo, Inventory_Amt, Inventory_Qty )

Implementation in MS Access

Create Customer Form

Thank You