and furniture. A large variety of pre-designed, customizable objects come with the program. Archicad allows the user to work with either a 2D or 3D representation on the screen. Two-dimensional drawings can be exported at any time, even though the model in the program's database always stores data in three dimensions. Plans, elevations, and sections are generated from the three-dimensional virtual building model and are constantly updated if the user 'rebuilds' the view. Detail drawings are based on enlarged portions of the model, with 2D detail added in. Collaboration and remote access Archicad released its first file exchange based Teamwork solution in its version 5.1 in 1997, which allowed more architects to work on the same building model simultaneously. A completely rewritten Teamwork "2.0" solution with a new database approach came out in version 13 in 2009 named Graphisoft BIM Server. Since only the changes and differences are sent to the central storage, this solution allows remote access to the same project over the Internet, thus allowing worldwide project collaboration and coordination. In 2014, with the introduction of the BIMcloud, better integration is provided with standard IT solutions: browser-based management, LDAP connection, and HTTP/HTTPS based communication. Also, new scalability options are available, by allowing multi-server layouts to be created, with optional caching servers. APIs and scripting Third-party vendors and some manufacturers of architectural products have compiled libraries of architectural components for use in ArchiCAD. The program includes Geometric Description Language (GDL) used to create new components. Also, API (Application Programming Interface) and ODBC database connections are supported for third party Add-On developers. Via direct API links to 4D and 5D software such as Vico Office Suite or Tocoman iLink, the Archicad model can be exported to BIM-based cost estimation and scheduling. Archicad is also directly linked via API to Solibri's Model checking and quality assurance tools. In addition, Graphisoft provides a direct link to Grasshopper 3D enabling a visual programming environment for parametric modelling and design. Data interchange ArchiCAD can import and export DWG, DXF and IFC and BCF files among others. Graph iSOFT is an active member of BuildingSMART (formerly the International Alliance for Interoperability, IAI), an industry organization that publishes standards for file and data interoperability for built environment software. Graph iSOFT was one of the founders of the Open BIM concept, which supports 3D BIM data exchange between the different design disciplines on open-source platforms. ArchiCAD can