Since 1984 Data Design System GmbH (DDS) has been developing innovative software solutions for integrated electrical, HVAC and solar engineering. Beyond the classical application planning, the products of “DDS-CAD” contain the necessary calculating functions for every application and realize a complete project documentation. DDS-CAD is a powerful open-BIM solution and is compatible with open buildingSMART data standards. The interface equipment includes 2-way interfaces to KNX software ETS3 and 4. DDS GmbH is part of the DDS ASA Corporation based in Norway. DDS Europe is the among the leading software companies in its segment. Craft, design offices, administrative buildings, industrial enterprises and educational institutions are among the typical customers of the company.