例如，系统设计人员对系统的逻辑和物理方面感兴趣，因此最有用的形式就是类和序列关系图，而不是用例和活动关系图。

For example, a system designer is interested in the logical and physical aspects of a system, so the most useful forms are class and sequence diagrams rather than use-case and activity diagrams.

youdao

例如，系统设计人员对系统的逻辑和物理方面感兴趣，因此最有用的形式就是类和序列关系图，而不是用例和活动关系图。

For example, a system designer is interested in the logical and physical aspects of a system, so the most useful forms are class and sequence diagrams rather than use-case and activity diagrams.

youdao