Biographical Sketch: Scott W. Ambler is IBM Rational’s Chief Methodologist for IT, working with IBM customers around the world to help them to improve their software processes. He is the founder of the Agile Modeling (AM), Agile Data (AD), Disciplined Agile Delivery (DAD), and Enterprise Unified Process (EUP) methodologies and creator of the Agile Scaling Model (ASM). Scott is the (co-)author of 19 books, including Refactoring Databases, Agile Modeling, Agile Database Techniques, The Object Primer 3rd Edition, The Enterprise Unified Process, and his latest Disciplined Agile Delivery (IBM Press, Q1 2012). Scott is a senior contributing editor with Dr. Dobb’s Journal. His personal home page is http://www.ibm.com/software/rational/leadership/thought/scottambler.html and his Agility@Scale blog is www.ibm.com/developerworks/blogs/page/ambler.