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PSP by Watts S. Humphrey

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3Measuring Software Size

To make a software development plan, first produce a conceptual design and then estimate the size of the product to be built to that design. With the size estimate, you can then estimate how long it will take to develop the product. Before you can estimate a program’s size, however, you must have a way to measure size. This chapter describes the principal ways to measure the sizes of various products and how to use these measures for project planning and quality management. Later chapters show how to estimate program size and development time. They also describe how to produce a schedule and how to measure, track, and report development status. The planning process, however, starts with size estimates, which require ...

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