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Practical Software Estimation: Function Point Methods for Insourced and Outsourced Projects by M. A. Parthasarathy

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Chapter 15Estimation Tools

Why Use Tools?

IT managers often expect a good estimation tool to solve their estimation deployment problems across the developer community. Simply acquiring a good software estimation tool does not guarantee good software estimates. If the quality of input to the estimation tool is poor, then poor estimates will result; this is what’s known as the Garbage In = Garbage Out (GIGO) principle. You may have a high-powered Harley Davidson motorcycle, but unless you know how to drive it and you also know the roads, you may not be able to move any faster than you would if you were driving an ordinary motorcycle.

While discussing some popular estimation tools in her article, “Software Project Estimation,” Kathleen Peters warns ...

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