<P> A data dictionary, or metadata repository, as defined in the IBM Dictionary of Computing, is a "centralized repository of information about data such as meaning, relationships to other data, origin, usage, and format". Oracle defines it as a collection of tables with metadata . The term can have one of several closely related meanings pertaining to databases and database management systems (DBMS): </P> <Ul> <Li> A document describing a database or collection of databases </Li> <Li> An integral component of a DBMS that is required to determine its structure </Li> <Li> A piece of middleware that extends or supplants the native data dictionary of a DBMS </Li> </Ul>

What is another name for a data dictionary
find me the text answering this question