Question: I need help with this assignment (data warehouse) (a) what are the main reasons against creating a relational database model without first creating an ER

I need help with this assignment (data warehouse) (a) what are the main reasons against creating a relational database model without first creating an ER Model? Explain how the role of Business rules may be important?

(B) You are the IT Director of a nationwide insurance company. Write a memo to the Executive Vice President explaining the types of opportunities that can be realized with readily available strategic information.

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