The software part of reforming instrument was introduced, which includes measurement functional module, main menu block diagram and calculation flow diagram of roughness parameter.

主要介绍了改造仪器的软件部分，包括测量的功能模块、主菜单框图以及粗糙度参数的计算的流程图。

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And getting functional flowchart of system module by using status diagram and sequence diagram in UML for system design; Last, making a design of database and system interface.

又以uml中的状态图和时序图进行系统设计，给出了具体模块的功能流程图，对数据库做了相应的设计。

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