Building Information Modeling (BIM) is a digital representation of the facility that is not only important in the design phase, but also in the construction and post construction phases. PDC has been providing engineering designs in Autocad as well as Building Information Modeling in Revit, Autocad MEP and Navisworks. A large percentage of our projects require both Building Information Modeling as well as Clash Detection, at all deliverable phases for projects of a substantial size.