According to a first aspect there is provided a system to automatically generate software for an object to relational mapping system. The system reads class information respectively associated with a plurality of classes. The system reads meta-data based on the class information. In addition the system automatically generates the plurality of classes based on the meta-data. The plurality of classes to be used in the object to relational mapping system to enable an application program to access data that is persistently stored in a database and accessed by the application program from an instance of a data object class that is included in the plurality of classes. The plurality of classes further includes a first class that is utilized to create the instance of the data object class.