BIM (Building Information Modeling) is not a software but an information based system that improves how project get designed.
When carrying out architectural designs through BIM, you create a 3D model introducing architectural items such walls, columns, beams, windows, doors or stairways instead of lines. Each of the items is saved in a different layer, allowing you to export structural elements or other facilities (plumbing, electricity or wastewater systems) to make easy the work of other professionals or the use of peripheral software which support BIM applications.
There are currently many commercial applications using BIM Technology such as Autodesk Revit Architecture, Graphisoft Archicad, Nemetschek AllPlan, Gehry Digital Project, Nemetschek Vectorworks, Autodesk Revit Structure or CypeCAD.
