越来越多的软件组织开始从瀑布式模型向迭代式模型转变。
More and more software organizations are moving away from the waterfall model of the life cycle to an iterative approach.
ADDIE模型有不同的版本，但是，在本质上，它是一个瀑布式方法。
There are different versions of the ADDIE model, but, in spirit, it is a waterfall method.
文章通过对数据仓库技术以及传统瀑布式软件开发模型的分析，提出了数据仓库开发的螺旋式开发模型。
This paper presents a new spiral development model based on data warehouse through analyzing the data warehouse technique and traditional software development model of waterfall.
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