但是这里有什么在发生吗，这些模型在交互作用。

But what is happening here, the models are interacting.

youdao

设计模型层级捕获了“可设计的”各个元素之间的交互作用。

The design Model Level captures the interaction between "designable" elements.

youdao

除流程模型之外，还需要有种方法来明确指定在整个过程中Web服务相互之间如何实现预期的交互作用。

In addition to the flow model, there needs to be a way of specifying exactly how the web services involved in the process are expected to interact with each other.

youdao