9780132582209

Poor quality continues to bedevil large-scale development projects, but few software leaders and practitioners know how to measure quality, select quality best practices, or cost-justify their usage. In The Economics of Software Quality ,leading software quality experts Capers Jones and Jitendra Subramanyam show how to systematically measure the economic impact of quality and how to use this information to deliver far more business value. Using empirical data from hundreds of software organizations, Jones and Subramanyam show how integrated inspection, static analysis, and testing can achieve defect removal rates exceeding 95 percent. They offer innovative guidance for predicting and measuring defects and quality; choosing defect prevention, pre-test defect removal, and testing methods; and optimizing post-release defect reporting and repair. This book will help you Prove that improved software quality translates into strongly positive ROI and greatly reduced TCO Drive better results from current investments in debugging and prevention Use quality techniques to stay on schedule and on budget Avoid ;hazardous ; metrics that lead to poor decisions

Capers Jones, President/CEO of Capers Jones & Associates LLC, founded Software Productivity Research LLC (SPR), where he remains Chief Scientist Emeritus. One of the software engineering field’s most influential thought leaders, his books include Patterns of Software Systems Failure and Success; Applied Software Measurement, Third Edition; and Software Assessments, Benchmarks, and Best Practices. Jones is a Distinguished Advisor to the Consortium for IT Software Quality (CISQ).

Olivier Bonsignour, Vice President of Product Development at CAST, is responsible for R&D and product management. Prior to CAST he was CIO at the Advanced Research Division of the French Defense Ministry. An early pioneer in distributed systems and object oriented development, Bonsignour holds advanced engineering and management degrees from top institutions in France.

Foreword xix

Preface xxi

Acknowledgments xxvii

About the Authors xxxi

Chapter 1: Defining Software Quality and Economic Value 1

Introduction 1

Defining Software Quality 8

Defining Economic Value and Defining the Value of Software Quality 17

Summary and Conclusions 33

Chapter 2: Estimating and Measuring Software Quality 35

Introduction 35

Using Function Point Metrics for Defect Potentials 39

Software Defect Potentials 39

Estimating Software Defect Prevention 71

Estimating Software Defect Detection and Defect Removal 74

Measuring Application Structural Quality 77

Examples of Structural Quality Assessments 88

Three Problems That Distort Software Economic Analysis 95

Summary and Conclusions on Software Quality Estimation and Measurement 117

Chapter 3: Software Defect Prevention 119

Introduction 119

Analysis of Defect Prevention Results 135

Summary and Conclusions of Software Defect Prevention 188

Chapter 4: Pretest Defect Removal 191

Introduction 191

Small Project Pretest Defect Removal 196

Large System Pretest Defect Removal 201

Analysis of Pretest Defect Removal Activities 208

Summary and Conclusions about Pretest Defect Removal 277

Chapter 5: Software Testing 279

Introduction 279

Summary and Conclusions on Software Testing 344

Chapter 6: Post-Release Defect Removal 347

Introduction 347

User and Industry Costs from Post-Release Defects 409

Summary and Conclusions on Post-Release Defects 431

Chapter 7: Analyzing the Economics of Software Quality 433

Introduction 433

The Economic Value of Software 435

Economic Impact of Low-Quality and High-Quality Software 460

Summary and Conclusions on the Economics of Software Quality 541

References and Readings 545

Index 561

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The Economics of Software Quality

The Economics of Software Quality

0132582201

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Author Biography

Table of Contents

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