REA Models and Relational Databases

Question 1

WHAT IS REA?

Answer 1

1) resource
2) Event
3) Agent

Question 2

What are data elements?

Answer 2

also called attributes that describe the characteristics of instances in a class

Question 3

What are primary keys?

Answer 3

1) uniquely define instances of the class

CANNOT be a NULL ( BLANK)

Question 4

What are foreign keys?

Answer 4

1) Support the links between classes shown in the association, and other data elements for each class