Middle East
Issue 4
May 2009

  Model Based Estimating
Why can’t estimates be accurate?
"Awareness of BIM is such that it will eventually become part of our daily work"
Professor Chales M. Eastman, Director PH D Program
College of Architecture at Georgia Tech
Why can’t estimates be accurate?.
Inaccurate estimating can cause a business to lose money on a project if costs are underestimated. Equally, overestimating can tip the balance from success to failure at the bidding stage.

Even if this risk can be directed to the contractor, as with traditional fixed price contracts, the project overall will invariably suffer if estimation is poor. With target cost and shared risk/reward contracts becoming more common, the need for accurate estimation has never been greater.

This article examines why inaccuracies are so prevalent using current estimating processes.
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Model Based Estimating
Model Based Estimating
Quantities extracted from a Building Information Model provide the baseline data required to create accurate estimates.

Structuring this data correctly is the next step, but when done and linked to the model, estimates can be generated quickly and updated as the design model changes.

This article gives a high level overview of the process of model based estimating and highlights the key benefits of adopting this approach.
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Case Study - Canadian Dam Project
Case Study - Canadian Dam Project

Reducing project contingency for a major power project utilising Model Based Estimating.

Presented by:

Chief Estimator Software Logo-e-mail.bmp International Project Estimating

BIM Engineering BIM Engineering Solutions


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