In the first box of this ERD helps our customers in our system. The attributes in the first box needs to be provided just in case if we have two customers with the same last name, it will help us seperate one customer from the next.The overall attribute types not only help us as buisness find our customers, but they also keep record of what each customer is trying to purchase. Each customer will have different attribute types, basesd on their record of purchase. Because of the attributes, it helps the buisness with our database, in other words help us search our customer's information based on their attributes. We also hold the customer's purchase or item number, so that each customer has a different datatypes and relationships.
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