A data warehouse is a specialized repository where we gather data from various systems and sources and store it all in one place. We then extract data from the data warehouse to analyze and support business intelligence systems. Note how data warehouses are organized, how data is moved from many different and diverse sources to the data warehouse, and how a BI system uses data from the warehouse. Can you identify an example of an organization that uses a data warehouse? Do some research and see if you can find one. How is the data warehouse in the example you found organized? What are some of the technologies used, and what types of BI systems does the data warehouse support?
Source: Peter Aiken, https://www.youtube.com/watch?v=pdD_E4TZAYs This work is licensed under a Creative Commons Attribution 3.0 License.