The DDS-CAD Architect & Construction application is designed for architects, building contractors and producers/marketers of prefabricated houses. One module (Architect) assists with outlines, design criteria, general and detailed planning as well as automatic quantity billing. The other module (Construction) addresses construction and structural details. It generates all relevant production drawings in 2D and 3D, including cutting bills and complete bill of quantities. Data is transferred directly to production lines for cutting and assembly.