今天才知道

 

my experience, however, the simpler method has never worked on large software development efforts and the costs to recover far exceeded those required to finance the five-step process listed.

--Winston Royce

 

这个人wiki可以查到, waterfall模型的提出者,人家1970年的文章明确表示,大型开发根本不能用waterfall。

文章链接: http://www.cs.umd.edu/class/spring2003/cmsc838p/Process/waterfall.pdf

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