Overall study is divided into three parts: The first part is open-ended interviews.
整体研究分为三个部分：第一部分是开放式访谈。
Then do some open-ended interviews and unstructured live observations with a representative sampling of your customers.
然后再选取有代表性的客户样本，举行一些开放式的访谈，以较为松散的方式观察他们的现场反应。
Ultimately, we believe that properly conducted open-ended interviews are quite capable of exploring these aspects of the user's mental model.
最后要说明的是，我们相信通过合理的开放式访谈完全能够了解用户心理模型的上述方面。
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