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Chapter 1. Introduction

Chapter 1. Introduction

The third edition of Applied Software Measurement confirms the conclusions of the first and second editions, that measurement is a key technology for successful software development and maintenance. Indeed, measurements have been a pivotal component in the progress of the software industry in the years between the publication of the first and second editions. In particular, the usage of function point metrics has exploded across the software world.

In 1990, function points were just beginning to expand in usage. By 1996, function point metrics had become the dominant metric in the United States and about 20 other countries. By 2007, function point metrics had become the main basis of software benchmarks, but an unexpected issue occurred. As of 2007 there were about 20 function point variants, and few conversion rules from one variant to another. The data in this book is based on the function point metrics defined by the International Function Point Users Group (IFPUG) version 4.2 of the counting rules.


  

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