For example, have you ever wonder what IFC means?
IFC's - Industry Foundation Classes, is a data exchange method that specifies elements that are used in building construction in an agreed manner that define a common language for construction. IFCs provide a foundation for the exchange and sharing of information directly between software applications of a shared building project model. The IFC data model is a neutral and open specification that is not controlled by a single vendor or group of vendors. It is an object oriented file format to facilitate interoperability in the building industry, and is a commonly used format for BIM. The format is known as ifcXML. ifcXML2x3 (current version) is currently supported by Autodesk, Graphisoft, Nemestchek and Bentley. www.iai-international.org