 There can be more instance of a table template, each of them can have its own set of default values.DDM uses a building block approach, all the columns of a table are based on generic data types which are mapped to SQL types of the underlying database, this offers a high grade of re-usability and flexibility when designing a database, and also will make easier the future mapping of Data types to more common programming language types.DDM 0.1j is released under LGPL