Design and Implementation of Computerized Bill of Quantity System

Design and Implementation of Computerized Bill of Quantity System

INTRODUCTION

Generally, the process of awarding any construction contract is based on a competitive bidding. Contractors will be invited to submit their bids to the owner who normally awards the lowest bid to construct the project. Beforehand, both the owner and contractor have to access the construction cost of the proposed project.

This is achieved through a construction cost estimate. Although, the actual total cost of construction is not known until the completion of the project, conceptual estimates can be a good start for the owner and contractor.

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The owner will be able to estimate in advance a range of the final cost, to secure the lowest cost to construct the project, and budget the necessary fund in advance. Considering an adequate contingency percentage to the total estimated cost covers such risk.

In order to win the contract, the contractor bid price has to be low enough to compete with other competitors, yet high enough to cover his risks and make some profit. Consequently the importance of cost estimates is enormous for all project phase, moreover at the conceptual and feasibility phase.

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Aim and Objectives of the Study

The aim of this project is to develop a prototype computer – aided project cost estimating system which can help the users to prepare preliminary estimate cost of building works. In order to achieve the above aim, the following objectives of study have to be carried out.

• To study the various conventional methods of estimating from contractors perspective.
• To identify the software used by contractor for cost estimating in practice and the problems they faced in using the software.
• To develop a computer – aided project cost estimating system by using Microsoft Access 2003.

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REFERENCE

Abd. Majid, Muhd Zaimi (1997). “Non-Excusable Delays in Constructions.” Loughborough University of Technology, UK: PhD Thesis.
Adrian. J. “Construction Estimating an Accounting and Productivity Approach’:, 2^nd edition, 1993 ,  Stipes Publishing Company.
Asworth, Allan, “Cost Studies Of Building”, Longman Group UK Limited, 1988,p60,85.
Bryan, S.M. “Assembly Pricing in Construction Cost Estimating.” Cost Engineering Journal, Vol.33, No. 8, August 1991.
Carr, R.I, “Cost Estimating Principle,” Construction Engineering and management Journal, Vol. 115, No 4, December 1989.

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