Green Building XML
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The Green Building XML schema (gbXML) is an open schema developed to facilitate transfer of building data stored in Building Information Models (BIMs) to engineering analysis tools. It enables interoperability between BIM and Building performance simulation, which is relevant to green building design and operation. gbXML is being integrated into a range of Computer-aided design (CAD) software and engineering tools, supported by leading 3D BIM vendors.[1] The streamlined workflow can transfer building properties to and from engineering analysis tools, which eliminates the duplicate model generation and allows a bidirectional information update.
gbXML is the underlying architecture of Autodesk's Green Building Studio commercial on-line energy analysis product,[2] and is the main export option for energy analysis from their modeling products.