Whatever the case, the type of interaction you will be modeling determines the first (and left-most) element in the sequence diagram.

无论是哪种情况，将要建模的交互类型决定了序列图中的第一个(最左边的)元素。

youdao

The interface is still the most important element for technical interaction with the service but now SOA service is defined by the Service Description.

这些接口仍然是与服务进行交互的最重要技术元素。 但是，现在SOA服务是由服务描述来定义的。

youdao

A service contract is binding on all participants in the interaction, including the service itself and the element that provides it for the particular interaction in question.

在交互过程中，服务契约与所有参与者进行绑定，包括服务本身和为特定的交互活动提供服务的元素。

youdao

We think that the element of human interaction does play a role in consumer electronics retail.

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