> What’s the difference between this and “waterfall” then? The difference between this and “traditional waterfall” is that you do this continuously, simultaneo

> What’s the difference between this and “waterfall” then? The difference between this and “traditional waterfall” is that you do this continuously, simultaneously with implementation, and not just once, up-front before building anything. (At least that's the common picture of “waterfall” -- which of course proponents of various “agile” methodologies prefer to contrast their product against -- though IIRC Brooks or someone had proposed / recorded iteration on this in parallel with implementation long before the Agile Manifesto.)