Chapter 1Introduction
Estimation and measurement are important for designing, building, modifying, and operating all types of products and for delivering many types of services. This chapter identifies the types of quantities that you must be able to estimate and measure and explains why estimation is inherently difficult. Software is difficult to describe, build, and measure, making estimation even more difficult. The number of systems and products with software content continues to increase. Therefore, more and more people need techniques to estimate software-intensive systems. Estimation must be a continuing process because all estimates have uncertainty, and because many things change during a project. This chapter describes a feedback control ...
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