Our 100% Java-based software is based on a service-orientierte architecture (SOA) with JBoss application server. The  graphical user interface(GUI) is seperated from the business logic and  adaptable using  XML-technology.  We use Hibernate as Object-Relational Mapping (ORM) framework. Hence, our applications are independet of any SQL database. Envers allows us 100% traceability of all user inter- and transactions. iReports is used for reporting and data analysing.