Driving a car: an excellent Scrum analogy

I've been reading, Agile Project Management with Scrum by Ken Schwaber. One of the things that struck me right off was in Mary Poppendieck's forward, where she provides an excellent analogy: that of driving a car. She describes how driving is made of a set of simple rules, and is a process by which we make small course corrections, frequent decisions, and so on, along the path we take. Yes, we have an end goal in mind, but how we get there is a process which the team (driver) determines along the way. This is unlike say a train route, where it's completely programmed and extremely well known before the trip even starts. A simple analogy, but probably the best fitting, strongest, and easiest to grasp that I've seen yet, in terms of Agile processes.

Tags: Agile, Scrum, Poppendieck