[CAD Note]

According to Laiserin and others, the first implementation of BIM was under the Virtual Building concept by Graphisoft's ArchiCAD, in its debut in 1987.

The concept of BIM has existed since the 1970s. The term Building Information Model first appeared in a 1992 paper by G.A. van Nederveen and F. P. Tolman.[3] However, the terms Building Information Model and Building Information Modeling (including the acronym "BIM") had not been popularly used until 10 years later when Autodesk released the white paper entitled "Building Information Modeling".[4] Jerry Laiserin helped popularize and standardize the term[5] as a common name for the digital representation of the building process as then offered under differing terminology by Graphisoft as "Virtual Building", Bentley Systemsas "Integrated Project Models", and by Autodesk or Vectorworks as "Building Information Modeling" to facilitate exchange and interoperability of information in digital format.

http://en.wikipedia.org/wiki/Building_information_modeling