New Stuff is a manufacturing business that is setting up their business intelligence infrastructure. "NewStuff" has a series of very large and critical transaction databases that it uses for daily operations (relational database management systems) such as on staff, customers, sales and so on. To start running business intelligence and analytics "NewStuff" have been told it should use a Data Warehouse.

Your task: Give two reasons why you would recommend that New Stuff use a Data Warehouse.

(100 words maximum)