The analysis, classification and maintenance of an organization's data and data relationships. It includes the development of data models and data dictionaries, which, combined with transaction volume, are the raw materials for database design. Although data administration and database administration are separate functions, both are typically combined into one department and are often performed by the same people. However, "data" administration deals with the modeling of the data and treats data as an organizational resource, while "database" administration deals with the implementation of the types of databases that are in use. The person who performs "data" administration functions is a "database analyst" or "data administrator," the latter being an earlier title for the job. The person who handles "database" administration, which is the technical design and management of the database, is the "database administrator."