Oh yes it was advocated. Maybe the actual term "waterfall" was invented in order to criticize the methodology, but it was describing and criticizing a real, com

Oh yes it was advocated. Maybe the actual term "waterfall" was invented in order to criticize the methodology, but it was describing and criticizing a real, commonly used methodology. Waterfall is really how you manage other large construction projects like building a house or a bridge. So it is not completely crazy to think you can also develop software that way. It took many failures to realize software demanded a different approach.