As you can see, you can create various types of messages between lifelines in a sequence diagram, and select an existing operation as a signature of the message.
如您所看到的，您可以在序列图中的生命线之间创建各种类型的消息，并选择现有的操作作为消息的标记。
When you double-click on a message operation signature on a sequence diagram, a list of available operations will display.
当您在序列图的消息操作签名上双击时，会出现一个可用操作的列表。
In addition, refactoring an operation will update the corresponding message in a Sequence diagram, even when the Sequence diagram is in a closed model.
此外，重构一个操作将会更新序列图中相应的信息，即时当这个序列图在一个被选择的模型中。
In addition, if a Sequence diagram message references an operation, and the operation is subsequently refactored, the message name will be updated automatically.
此外，如果一个序列图消息引用一个操作，那么这个操作随后就会被重构，这个消息名称就会自动被更新。
As you can see from Figure 23, when creating a new operation from the sequence diagram, there is a drop-down menu in the Create new operation dialog.
正如您从图23中看到的那样，在从序列图中创建新的操作时，在CreateNewOperation对话框中会出现一个下拉菜单。
As you can see from Figure 23, when creating a new operation from the sequence diagram, there is a drop-down menu in the Create new operation dialog.
正如您从图23中看到的那样，在从序列图中创建新的操作时，在CreateNewOperation对话框中会出现一个下拉菜单。
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