Combining academic research results with industrial real-world experiences, this book provides a broad perspective on product line engineering; managers as well as technical specialists will benefit from reading it. Coverage first presents a common framework for the description of the industrial case studies detailed in the book. Next, it presents the wealth of knowledge that eight companies have gathered during the introduction of the software product line engineering approach in their daily practice. This book will help readers understand all the relevant aspects of applying software product line engineering, regarding business, architecture, process, and organizational issues. Written by practitioners for practitioners, it provides a rich set of useful information for those considering using a product line approach in their organization or who want to improve their current practices.