Talk:Waterfall model
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In practice, the process rarely proceeds in a purely linear fashion. Iterations, by going back to or adapting results of the precedent stage, are common.
Would it be correct to state that this actually mutates the waterfall model into a spiral model? (and hence, waterfall method is *almost never* used in its "pure state"? ) 80.126.238.189 13:13, 15 Feb 2004 (UTC)
- In my opinion ... almost, but not quite. In the waterfall model, the end of each iteration is (supposedly) a fully-functional, deployable, saleable product. In the spiral model, the end of each iteration (except the last) is never intended to be fully-functional; it merely finishes the goals laid out for that particular iteration. Jim Huggins 04:40, 3 Apr 2005 (UTC)