Oracle, the enterprise software giant provides a range of tools for managing business data, supporting business operations, and facilitating collaboration and application development. Companies use Oracles database management software to store and access data across numerous platforms. The company also offers business applications for data warehousing, customer relationship management, and supply chain management. In recent years the company has aggressively used acquisitions to expand its product lines, including the purchases of PeopleSoft, Siebel Systems, and Hyperion Solutions.