Benoît: First, and most importantly, this book is dedicated to my family for their ongoing support during the very long journey of writing this book. Expressed differently: Lore, Julien, and Jocelyne, please accept my apologies for the multiple evenings and weekends I should have spent with you.

I also want to express my gratitude to the numerous people who help with data model–driven management in the industry. Many became friends—they should recognize themselves!

Finally, for some local connotations: “Oufti, quá bê lîve! Oufti! Oufti...”

Joe: To my wife, Julia, who was very patient with me. Thanks to the Learning@Cisco team, which helped with dictation of some chapters of this book after I broke my wrist.

Jan: To my family, at home and at work. In the hopes of replacing some duct tape with computer science.