A restaurant chain has several store locations in a city (with a name and zip code stored for each), and each is managed by one manager. Managers manage only one store. Each restaurant location has its own unique set of menus. Most have more than one menu (e. g., lunch and dinner menus). Each menu has many menu items and with different prices on different menus.

George heard about the benefits of a data warehouse. he wants to try implementing one for his organization. however, he is afraid that transferring data to the data warehouse will affect transaction time. which element ensures that transactions are not affected when moving data to a warehouse? when data is transferred to a data warehouse, the a area frees the source system to continue transaction processing.