In other words, it just reflects the state of the User Interface layer.

换句话说，它仅仅反映用户界面层的状态。

youdao

User interaction: the user interaction layer allows a user to interact with an application (for example, visualizing information stored in the database).

用户交互层：用户交互层让用户可以与应用程序交互(例如，显示数据库中存储的信息)。

youdao

The Template is the layer that defines how the data should be presented to the user, whereas this is considered the View layer in an MVC pattern.

模板层定义向用户显示数据的方式，这相当于 MVC 模式中的视图层。

youdao

Where LucidWorks wants to make its mark is in the layer that sits between the user (or the developer) and this underlying technology, what it calls the Search, Discovery, and Analytics (SDA) layer.

FORBES: LucidWorks: Bringing Search to Big Data