The system development team at the Wilcon Company is working on developing a new customer order entry system. In the process of designing the new system, the team has identified the following data entity attributes:

Inventory Order

Order Number (identifier)

Order Date

Customer Name

Street Address

City

State

Zip

Customer Type

Initials

District Number

Region Number

1 to 22 occurrences of:

Item Name

Quantity Ordered

Item Unit

Quantity Shipped

Item Out

Quantity Received

a. State the rule that is applied to place an entity in first normal form. Revise this data model so that it is in first normal form.

b. State the rule that is applied to place an entity into second normal form. Revise the data model (if necessary) to place it in second normal form.

c. State the rule that is applied to place an entity into third normal form. Revise the data model to place it in third normal form.

d. What other guidelines and rules can you follow to validate that your data model is in good form?