Top-Down Cost Estimating

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A 4 page paper discussing top-down cost estimation of large projects to assess the method's overall reliability. Though it may not be possible to devise totally accurate cost estimates of projects filled with unknowns, certainly it is necessary to gain a better understanding of final cost than has been possible with traditional bottom-up methods. The bottom-up approach is preferable in some instances, top-down in others. As yet there is no cost estimating process that can return a guaranteed cost that will not be exceeded, but the top-down method offers advantages and can help to improve common failure and cost overrun rates. Bibliography lists 7 sources.