Content: Chapter 1 Introduction --
chapter 2 Variations in Software Activities by Type of Software --
chapter 3 Variations in Software Development Activities by Type of Software --
chapter 4 Variations in Occupation Groups, Staff Size, Team Experience --
chapter 5 Variations due to Inaccurate Software Metrics That Distort Reality --
chapter 6 Variations in Measuring Agile and CMMI Development --
chapter 7 Variations among 60 Development Methodologies --
chapter 8 Variations in Software Programming Languages --
chapter 9 Variations in Software Reuse from 0% to 90% --
chapter 10 Variations due to Project, Phase, and Activity Measurements --
chapter 11 Variations in Burden Rates or Overhead Costs --
chapter 12 Variations in Costs by Industry --
chapter 13 Variations in Costs by Occupation Group --
chapter 14 Variations in Work Habits and Unpaid Overtime --
chapter 15 Variations in Functional and Nonfunctional Requirements --
chapter 16 Variations in Software Quality Results --
chapter 17 Variations in Pattern-Based Early Sizing --
chapter 18 Gaps and Errors in When Projects Start. When Do They End? --
chapter 19 Gaps and Errors in Measuring Software Quality --
chapter 20 Gaps and Errors due to Multiple Metrics without Conversion Rules --
chapter 21 Gaps and Errors in Tools, Methodologies, Languages.