记号包括了数据流图，结构图，hipo图，5过程模板，伪代码，结构化流程图，结构化英语和判定表。

The notations included data flow diagrams, structure charts, HIPO diagrams, 5 procedure templates, pseudo code, structured flowcharts, structured English, and decision tables.

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它容易掌握，使用方便，用它表达结构化程序比流程图更优越，有利于提高软件生产率。

Easy to learn and convenient to use, it has advantage over flowcharts in expressing structured programs, and improves the productivity of software development.

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本文提出了一种把源程序转换为结构化的流程图（PAD图）的方法和实现技术，该方法和技术已被用于转换工具IPADT系统。

This paper gives a method and implementation techniques to transform source program to structured flowchart (PAD diagram). And they have been applied to transforming tool IPADT system.

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