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5D BIM (Building Information Modeling) however, is turning out to be critical in closing this gap. 5D BIM involves extraction of construction information from intelligent BIM ready virtual building models.

To those great minds involved in delivery phase of projects, 5D BIM is a blessing in disguise. Cost manager offers utmost value through their Cost planning, at the conceptual front end stages of a project by providing Cost advice and estimates on various Design proposals and then refining those estimates as the design evolves.

Building information modeling is only as good as the information that is fed into it. While using BIM for cost estimation, it is solely an estimator's responsibility to develop information database that is useful for estimation. Cost estimation, i.e. the 5Th dimension of BIM, constitutes of multiple layers of activities, including cost planning, quantity extraction, and verification of - MEP, structural and rebar fabrication models and visualization of series of activities with corresponding accrued costs and verifying the same.

BIM can provide 3D constructible models to contractors that help them increase productivity and profitability. A general contractor is responsible for the means and methods of construction, in addition to construction coordination. He can access project specific documents and provide all the material labor and equipment required for construction.

Development of high rises and sky scrapers means huge investments; it also means that there is a lot at stake and hence Architects, engineers and contractors need to amp up project management work so that such large scale building development may be handled well.