People should stop using the term waterfall to describe any real process. It's only been used to describe a fictitious cartoon of a process, purely for the sake of their argument.
That wikipedia article is a bit of a mess, but read the article at footnote 7:
http://www.idinews.com/waterfall.html
"There's no such thing as the Waterfall Approach!
(and there never was)"
That wikipedia article is a bit of a mess, but read the article at footnote 7:
"There's no such thing as the Waterfall Approach! (and there never was)"