database management system (DBMS) is a set of programs that provide users with tools to add, delete, access, and analyze data stored in one location. An organization can access the data by using query and reporting tools that are part of the DBMS or by using application programs specifically written to access the data. DBMSs also provide the mechanisms for maintaining the integrity of stored data, managing security and user access, and recovering information if the system fails. Because databases and DBMSs are essential to all areas of business, they must be carefully managed.