Estimating projects be harmful and beneficial to projects

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How can top-down and bottom-up approaches to estimating projects be harmful and beneficial to projects?in your career which method of that approach do use and why?if you could change it what would you use instead?

Reference no: EM131436013

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Estimating projects be harmful and beneficial to projects : How can top-down and bottom-up approaches to estimating projects be harmful and beneficial to projects?in your career which method of that approach do use and why?if you could change it what would you use instead?

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