在流程模型的某些部分中，我们希望能描述流程中的信息是如何通过事件(这些事件是在活动间流动的)被接收到的，为此我们将使用业务项和数据流连接。
In process models, where we want to describe how information received through events flows between the activities in a process, we use business items and data-flow connections.
数据流程图描述了逻辑系统。
系统的数据流程图描述了作者层与读者层两个工作层面之间相互切换以及它们同系统之间相互通讯的关系。
The switching between author and reader levels and their intercommunication with the system may be described by a data flow graph.
在系统分析中，论文对系统功能结构、数据流程和数据结构进行了分析，运用数据流程图对系统进行了描述。
In system analysis, the thesis analyses system function structure, data flow and the data structure and describes system with data flow chart.
在行为级综合中，一般在调度与分配之前先将系统的描述转换成一个数据流程图(DFG)。
In behavior synthesis, the behavior of the system is always transformed to a DFG before scheduling and allocation.
论文中对系统的设计目标，数据结构，数据流程和系统的主要特点等给出了描述，并重点介绍了系统功能模块的详细思路和实现方法。
Thesis on system design goals, data structure, data flow and the main characteristics of the system description is given, and focuses more ideas and methods on the system function.
该方法用对象关系图描述信息系统的结构，用改进的数据流程图来描述每个对象内部处理关系。
The structure of the information systems was described with objects-related diagram. As for the discussion on all the object processes, the revised data flow diagram was also involved.
数据流程图描述了逻辑系统。
数据流程图描述了逻辑系统。
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