<P> Database design is the organisation of data according to a database model . The designer determines what data must be stored and how the data elements interrelate . With this information, they can begin to fit the data to the database model . </P> <P> Database design involves classifying data and identifying interrelationships . This theoretical representation of the data is called an ontology . The ontology is the theory behind the database's design . </P>

The person who designs creates and manages the database is the