图3显示了用maestro[19]工具建立的示例流程模型，此工具实现的是由OM g[3]定义的最新标准符号Business Process Modeling Notation (BPMN)。

Figure 3 shows our sample process modeled in the tool Maestro [19], which implements the Business process Modeling notation (BPMN), a recent standard notation by the OMG [3].

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