Convenient data management system for managing NC programmes, clamping devices and CAD data incl. SAP and ERP interfaces. The CAMMAN NC programme management facilitates access to existing data and enables the entry of extensive additional information such as drawing number, order number, project number, version number, customer, comment, date, programmer, processing machine as well as the programme release for DNC systems. File selection is supported by an integrated 3D graphics viewer. By using the NC programme, clamping device and drawing management, the design, NC programming and machine operators access a central database. This eliminates confusion and sources of error. Individual adaptations as well as the connection to already existing databases can be realised cost-effectively with CAMMAN.