You are employed as a data analyst in a medium$-$sized retail company that has

been collecting considerable data from diverse sources like sales transactions,

customer records, inventory, and customer interactions on the website. Your

manager is expressing concerns about the efficiency and performance of data

analysis tasks, noticing a slowdown in reporting and data retrieval from the

database. She is seeking your expertise in addressing these challenges.

You have decided to implement a Data Warehouse to streamline the data analysis,

reporting, and retrieval processes within the retail company.

$5\mathrm{.}1$ Provide a brief definition of a Data Warehouse.