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Explain why the sizing of software is important as an estimating technique. Software estimation is needed at a very early stage and thus estimation using software size is a formidable task. Estimating cost of software using size needs experience which usually is available and extremely needed for larger projects. All these make software sizing an important technique. Once can use historical data or experience from past projects to estimate cost based on software size. Moreover, a good experienced developer can perform this activity, which makes it resource. Likewise and logically a table or house is also estimated based on its size.
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