This book is called capacity management because it encompasses two areas of planning that are normally discussed independently; short term capacity leveling or capacity constraining, which is the movement of demand to fit within the available supply, and long term capacity planning, which is the planning of long-term demand in order to determine if the capacity should be changed. In this book, both topics are covered and they are covered using multiple software applications to explain the concepts of capacity management. These are two closely related processes, however they are often discussed separately. This book combines their explanation as well as their relationship to one another.