- noun a large collection data that is collected over a period of time from different sources and stored on a computer in a standard format so that is easy to retrieve. It can be used, e.g., to support managerial decision-making.
- noun a database used for analysing the overall strategy of a business rather than its routine operations
- An extensive database which combines all the databases of an entity, such as a large corporation. Some organizations store terabytes of information, and data warehouses provide a means to organize the data, and make decisions based on the information as a whole.