1. BIM It's a Living DesignA BIM model is not just a computer model made up of lines and points, like a typical CAD model. In a BIM model, the lines, points and other objects all contain design information that can be used and modified over the lifetime of the building, that is, from initial concept design through construction and ultimately facility operations and maintenance.For example, a drawing of a steel beam in a CAD design may just be a collection of lines and points, but in a BIM model in addition to those lines and points this beam will have information linked to the beam's cross-sectional dimensions, weight per unit length and other engineering properties. This beam may also have information on its material make-up, pricing information and possibly its manufacturer.In the case of an entire building, the BIM model stores this and more information for every single element of the project, all of which can be "extracted" to generate plans, elevations, sections, schedules, material quantities and cost estimates.2. Seeing in 3DNot only do BIM models have information behind them, but they also allow for more detail then 2D drawings.One of the buildings the BIM team designed included a staircase leading to a door. They viewed the staircase in both 2D and 3D. In 2D, the staircase looks like it's leading to a door, but in 3D, it was discovered that it really led right into a wall. The team's architect and structural engineer were able to readily resolve this conflict that otherwise may not have been discovered until late into project construction.3. Team effort"We work as a team, sharing our discipline-specific BIM files, through a master file, building virtually together. We can see each other's work and spot problems and correct them right away.Any designer can point out that something either doesn't look right or needs some clarification from a different design discipline. We'll then investigate the issue as a team."