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 (identi?er)
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 nec- essary) 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