For the Entity-Relationship (E-R) diagram provided in Figure 1, draw in the relationship cardinalities and describe them. Describe any assumptions you must make about relevant business rules.

Please use Microsoft Visio to create a complete E-R diagram for Purchase Order Application.

Save your work as a .pdf file and upload it to blackboard. You must use the right submission format.

CUSTOMER Name Address Phone Number Places ORDER BACKORDER Generates Backorder Number Customer Number Order Date Order Number Backorder Quantity Includes UNEITEM STOCKITEM Refers_to Order Number Stock Item Number Order Quantity Discount Stock Item Number Description Price