BIM 3D Modeling and Coordination

BIM creates a virtual 3D model of the building before construction begins.  As a result, everything fits.

BIM managers are like orchestra conductors.
Each building trade creates their own model. The BIM coordinator is the conductor that facilitates them to work together to create a fantastic building.
A well managed piping model.
This is an example of piping that has to be both modeled and coordinated.