A concise and practical introduction to the basic principles of effective software verification and validation (V&V). This edition has been revised and includes five new chapters and five new appendices focused on management techniques to make your company's software V&V efforts more cost-effective. Managers should learn how to help their organization create more accurate estimates and schedules. Practitioners should learn fundamental software V&V practices such as the formal inspection process, configuration management, effective testing techniques, and how to use measurements to drive further process improvements.