本文采用面向对象的设计方法对切片过程进行了系统抽象，对切片中的对象进行了优化，给出了优化分层系统的整体结构。
In this paper, laminating process was abstracted with object Oriented Programming method, and the object of process was optimized, and the total structure of optimize laminating system was designed.
提出了把波动效应分析和系统依赖图结合起来进行切片的方法，通过波动效应分析反映面向对象程序中单元间的波动关系，基于系统依赖图切片侧重于分析控制依赖和数据依赖。
This method can be used to analyze the semantic relations in object-oriented program units by ripple effect analysis, and the control dependency and data dependency by use of system dependency graph.
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