ABSTRACT
The goal of coordination is to achieve comprehensive and pre-emptive coherence of design and construction. This is as important within each specialty as it is across all disciplines, drawing types and scales. Incoherent design is not only costly and time-consuming to rectify on site. The chapter explores the methods as well as the key challenges involved and actual processes employed in using building information Modelling (BIM) to achieve design coherence spatially (3D), sequentially (4D) and quantitatively (5D). There are 10 key ways in which BIM facilitates coherent output in a way that is much more difficult to implement through multiple separate computer graphics technology files. They can be divided into two categories: those automated by the computer and those assisted by the computer. BIM project execution plans define the output standards, the deliverables that will be required from the model and the approach that will be used to produce them to those standards.
