Cecil Rupp brings more than 30 years of practitioner and executive-level experience in applying the methods and tools of information technology (IT) for software development. His roles span IT professional services, management, business process re-engineering consulting, product management, sales, and marketing.

In addition, Mr. Rupp has directly managed more than 30 enterprise-class IT programs and projects, with the last 15 years focused almost exclusively on supporting large federal and commercial health IT programs. He is also the author of the Building our Digital World (BODW) series of books on software and systems development practices.

From the beginning, I wanted to make sure that I accurately represented the Scrum and Lean-Agile approaches described in this book, and I reached out to the experts to get their input. There are also permissions that must be sought out and granted. So many folks were kind enough to help, and I want to thank all the people who responded back to my queries, read through the sections relevant to their respective disciplines, and who were kind enough to help me with their permissions and to provide their feedback. All of their efforts helped make this a better product.

Especially, I'd like to thank the following for their contributions to reviewing and providing feedback on the content relevant to their disciplines:

Jeff Sutherland – Scrum, Scrum of Scrums, Scrum@Scale

Kurt Bittner and Patricia Kong – The Nexus Framework

Craig Larman and Bas Vodde – Large-Scale Scrum

Scott Ambler – Disciplined Agile

Michelle Stoll – Scaled Agile Framework (SAFe)?

Peter Antman and Henrik Kniberg – Minimum Viable Bureaucracy