说明对程序系统的设计考虑，包括程序系统的基本处理流程，程序系统的组织结构、模块划分、功能分配、接口设计、运行设计、数据结构设计和安全性设计等，为程序的详细设计奠定基础。允许增加特殊的编写目的，即根据实际情况，编写者希望将一些针对特定系统的概要设计的考虑进行说明，可附加到上述一段文字的后面。-Description of the process system design considerations, including the system
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