Question 1
Why might the same REA diagram result in different relationship cardinalities?
◦ Different organizations might have different business policies.
◦ Different designers might implement an REA diagram differently.
◦ Different consultants might draw an REA diagram differently.
◦ Errors occur in the REA diagram.
Question 2
What is the first step to implementing an REA diagram in a relational database?
◦ Assign attributes to appropriate tables.
◦ Create a table for each distinct entity in the diagram and for each many-to-many relationship.
◦ Identify cardinalities.
◦ Use foreign keys to implement one-to-one and one-to-many relationships.