The database on which the system is based is linked via an OR transformation (Object Relational Mapping) to the RTSELS data objects. This link enables the object-oriented realisation of user requirements, whereby the data themselves can be stored in a relational database.
Another great advantage of the OR transformation is the option of linking the application to various databases. Thus, for example, without changing the application programme, the database schema can be altered or the database itself can be replaced by another product.
Thus access to extant SQL database structures, copying various table or column structures between databases and transferring data stocks to external databases are all integral features of RTSELS.