However, if either the source or target is a human actor, then the message is labeled with brief text describing the information being communicated.
不过,如果源或目标中有一方是人类参与者,那么消息就用描述正在交流的信息的简要文本作为标签。
Humans tend to latch on to one specific piece of information when making decisions, in this case the habits of the actor.
人类往往抓住某一特有的信息就认定一个结论。在此调查中,这个特有的信息这就是演员所表现出来的习性。
Because use cases contain actor and goal information in real language, test cases for user acceptance can be written prior to the creation of tests for the other test phases.
因为用例包括参与者真实语言的目标信息,用户验收的测试用例可以在为其它测试阶段创建测试之前编写。
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