primary system diagram 中文意思是什麼
primary system diagram
解釋
一次系統圖-
The feasibility study of this project and the method and process of structured system analysis are introduced in succession. the primary content of requirement investigation and the function requirements are presented. partial operations in this field are described using operation flow diagram and the process of disassembling and analysis of this system is described using layered dfd ( data flow diagram )
首先簡要介紹了技術方案的選擇和項目的可行性研究;接著簡要介紹了結構化分析法的方法步驟,介紹了本項目需求調查的主要內容,並用業務流圖對應用領域的部分業務進行了描述;用分層數據流圖描述了對系統的分解和分析過程,較詳細地描述了系統的功能需求。
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