Acknowledgments

Almost every preface ends with a list of acknowledgments of those who helped in the development of the book. We never fully appreciated how true this was until doing a book of our own. Such an effort is truly a work of a community. The list of people to whom we are in debt is long. The following people are especially significant to us:

• Debbie Lafferty from Addison-Wesley, who never grew tired of encouraging us and keeping us on track.

• Scott Bain, our colleague who patiently reviewed this work and gave us insights.

• And especially Leigh and Jill, our patient wives, who put up with us and encouraged us in our dream of this book.

Special thanks from Alan:

• Several of my students early on had an impact they probably never knew. Many times during my courses I hesitated to project new ideas, feeling I should stick with the tried and true. However, their enthusiasm in my new concepts when I first started my courses encouraged me to project more and more of my own ideas into the curriculum I was putting together. Thanks to Lance Young, Peter Shirley, John Terrell, and Karen Allen. They serve as a constant reminder to me how encouragement can go a long way.

• Thanks to John Vlissides for his thoughtful comments and tough questions.

Special thanks from Jim:

• Dr. Karen Gardner, a mentor and wise teacher in patterns of human thought.

• Dr. Marel Norwood and Arthur Murphy, my initial collaborators in KADS and pattern-based analysis.

• Brad VanBeek who gave me the space to grow in this discipline.

• Alex Sidey who coached me in the discipline and mysteries of technical writing.