 This paper was limited to the comparison of types of clashes identified in each of the three methods during a specific project.Although their results cannot be generalized, they still provide insight towards the need to identify what needs to be modeled in a BIM for MEP coordination prior to the start of the coordination process.Because writing comments on eight to ten copies is a tedious process and an inefficient use of the architect and engineer's time, they will frequently specify other 
methods for distributing comments.