The RUP documentation shows the evolution from business use-case model to business object model and system use-case model; we found this to be quite accurate and helpful.

RUP的文档显示了从业务用例模型到业务对象模型和系统用例模型的演进；我们发现这是非常正确和有帮助的。

youdao

In particular, you will often have multiple choices about how to structure your use case model 11; when you do, align your use case model with the above attributes.

特别地，你将时常会有关于如何构建用例模型11的多种选择；当你这样做时，用上述的属性定位你的用例模型。

youdao

So, they are a sign of a problematic use case model.

所以，它们是问题性用例模型的标志。

youdao

It can be made a model of DNA, or a model of a whole city like this one is, and sometimes they can make the model exist in the silicon of a computer, so you've got a computer model, and other times, they actually use real silicon and sand, which they're doing it, in this case, like a giant hands-on model.

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