The convention used in this example is to use a class diagram with a name that is the same as the component, and, in the package containing the component, to show its external view.

在这个例子中所使用的约定是，使用一个和合成要素名称一致的类图表，并且在包含该合成要素的包中，显示它的外部视图。

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For example, if it's a use-case package diagram, then there is likely an include, extend, or inheritance relationship between a use case in one package and one in the other package.

例如，如果两个用例包图之间存在依赖，很可能一个包中的某个用例和另一个包中的某个用例之间存在包含、扩展或者继承关系。

youdao

For example, if it's a use-case package diagram, then there is likely an include, extend, or inheritance relationship between a use case in one package and one in the other package.

例如，如果两个用例包图之间存在依赖，很可能一个包中的某个用例和另一个包中的某个用例之间存在包含、扩展或者继承关系。

youdao