stepwise refinement meaning in Chinese

逐步精化
逐步求精法
逐步优化一个结构化软件设计技术，数据和处理步骤首先被广泛的定义，然后被逐步的进行了细化。

Top - down design and stepwise refinement urged the programmer to set forth the broad outlines of a procedure first and only later fill in the details
顶?底的设计和逐步改进的方法驱使程序员先构造一个程序的轮廓，然后再补充细节。
The paper introduced the fundamental knowledge related to the subject , studied the component and architecture , and constructed the domain component library based on the constructing process and arithmetic in the domain component library . then the arithmetic of retrieval and matching have been discussed . based on the merits of abd ( stepwise refinement ) and cbd ( building blocks method ) , it described the application combined the two kinds of theory in the practice
本文介绍了有关的理论基础，研究了构件、构架及软件体系结构，讨论了领域构件库的构建过程及算法，建立了构件库，提出了构件库中构件查询的检索及匹配方法，给出了基于构架技术的逐步细化和搭建积木方式的优点，以此为基础，进行了实际开发研究，描述了运用两者结合的理论进行开发的过程。