I think the last paragraph is perhaps as important as the first one, though I wonder if it highlights the most poignant issues. In a sense, one concept agile i

I think the last paragraph is perhaps as important as the first one, though I wonder if it highlights the most poignant issues. In a sense, one concept agile is aimed at is that (most of the time) neither the developer nor the user / business knows exactly what the end result should be. Rather than try to ignore this, agile aims to treat it as a base truth, and work with it. Whether it succeeds or not is open for debate, but for most domains, I tend to prefer it over big, upfront design.