Acknowledgments

The authors wish to acknowledge our reviewers—Marty Barrett, Roger Champagne, Siva Muthu, Robert Nord, Vishal Prabhu, Andriy Shapochka, David Sisk, Perla Velasco-Elizondo, and Olaf Zimmermann—for their generosity in providing both opinions and comments. We also wish to thank Serge Haziyev and Olha Hrytsay for their contributions to Chapter 5. In addition, we would be remiss if we did not thank the many architects at Softserve—Serge, Olha, and Andriy included—for their overall strong support of our work.

Humberto wishes to thank the directors and the group of architects at Quarksoft; many ideas for the revision of ADD and one of the case studies presented in this book originated from putting the method into practice at this company. Thank you to the architects and developers in other companies with whom I have had the opportunity to collaborate and exchange ideas—I have learned a lot from them. I also wish to thank the people at the Software Engineering Institute, who have welcomed me and other academics for many years at the ACE Educators Workshop. I also want to give recognition to my university, Universidad Autónoma Metropolitana Iztapalapa, as it has always supported my work. Thanks to my colleagues Perla Velasco-Elizondo and Luis Castro, who have accompanied me for several years in this architectural journey. Thank you to Alonso Leal, who gave me the opportunity to become a practicing architect many years ago. Thanks to Richard S. Hall, who taught me many skills that have proved invaluable in writing this book. Finally, I wish to thank my coauthor Rick, for being such a nice person and colleague; it is always a pleasure to work and exchange opinions with him.

Rick wishes to thank James Ivers and his research group at the Software Engineering Institute. In particular, I would like to thank Rod Nord, for his careful and insightful review comments and suggestions. I would also like to thank my long-time collaborator and mentor Len Bass, who got me started on this software architecture journey many years ago. Without Len, who knows where I would be today. In addition, I would like to thank Linda Northrop, who vigorously supported my research for many years and provided many wonderful “opportunities to excel.” Finally, I would like to thank my coauthor Humberto, who has always been energetic, positive, and a true pleasure to work with.