More than 15 years have passed since we started working on the first edition of this book. A lot has happened in the meantime. A dot-com bubble has grown and burst. Another wave of lean management has rolled over the planning landscape. Some people still seem to think that Advanced Planning and Lean Management are exclusive philosophies although the automotive industry—as the prime father to Lean—is the best example that both can and should complement each other in a fruitful co-existence and synergy. New buzz words like profit velocity, demand sensing and service oriented architecture have come and gone. Often they disappeared even faster than they have risen.

自从我们开始写这本书的第一版以来，已经过去了15年。在此期间发生了很多事情。网络泡沫已经成长并破裂。另一轮精益管理浪潮席卷了整个规划领域。一些人似乎仍然认为先进的计划和精益管理是唯一的哲学，尽管汽车工业作为精益之父是最好的例子，两者可以而且应该在富有成效的共存和协同中相辅相成。像利润率、需求感知和面向服务的体系结构这样的新词时而来又去。它们消失的速度往往比上升的速度还要快。