然后描述了系统总体设计和功能模块设计过程，其中包括对数据库的设计、系统功能结构图等。
The overall layout and functional modules, including database design and system function diagram , are described in the second step.
在系统分析中先后用数据流程图、系统的功能结构图分析了BBS系统所需的各种数据。
Successively used the data stream chart the system function structure drawing in the system analysis to analyze each kind of data which the BBS system needed.
在系统分析中先后用数据字典、数据流程、系统的功能结构图、ER图分析了系统所需的各种数据。
Analyzed system an every kind of data for needing with the function construction diagram, the diagram of er of the data dictionary, data process, system successively in system analyze.
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