A common misperception is that we must start with firm requirements. There is a widespread but fallacious view that requirements are the customers’ job and that development should not start until they are explicitly defined. The fact is that the demand for firm and unchanging requirements is mostly wishful thinking....
From the Book Managing the Software Process, Addison-Wesley, 1998, ISBN 0201180952
Copyright © 1998 by Addison-Wesley Publishing Company, Inc.