这一部分重点关注与数据流建模有关的问题。
This section focuses on problems around the modeling of data flows.
如果活动内外的数据或控制流与理解导致建模错误的原因有关，我们将使用此图上半部分中的符号。
If the data or control flow in and out of activities is relevant to understand the cause of the modeling error, we use the notation in the upper half of the figure.
因此，捕获流程中的数据流，通常是业务流程建模项目中的一个重要阶段。
Therefore, capturing the data flow of a process is usually an important phase in a business process modeling project.
在UML中，活动被用来对不同种类的流程建模：信号流或数据流，也有算法流或过程流。
Activities in UML are used to model flows of various kinds: signal or data flows, as well as algorithmic or procedural flows.
除网关外，其中的部分建模语言(我们将只关注Business Modeler)还提供了建立控制流和数据流模型的另一种可选方法。
In addition to gateways, several of these modeling languages (we will only look at Business Modeler) offer an alternative approach to model control and data flow.
控制数据流图可用于系统建模、软硬件功能划分、系统综合与验证等多个环节。
CDFG (control data flow graph) can be used in system modeling, software and hardware partition, synthesis and verification.
提出了基于数据流分析的安全信赖建模的设计流程，并给出具体案例分析。
Then give the design flow of Trusting Modeling based on data flow analysis.
提出了基于数据流分析的安全信赖建模的设计流程，并给出具体案例分析。
Then give the design flow of Trusting Modeling based on data flow analysis.
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