In the end, the efficiency and feasibility of this model on estimating requirements evolutionary process are testified by a specific example.
最后通过对具体实例的分析，验证了该模型在评价需求演化过程上是有效可行的。
The primary research shows that the evolution process of requirements can be regarded as normal when the requirements evolutionary process changing chart is consistent with the model trajectory.
初步研究表明，只要需求演化过程的变化图和模型的轨迹图一致，那么需求的演化过程就可以看成是正常的。
These incomplete requirements call for a flexible modeling process and for techniques which are appropriate for evolutionary development.
这些不完整的需求需要灵活的建模过程和适合于进化开发的技术。
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