Services can be formed at all layers of the architecture: the infrastructure layer, UI layer, and data layer.

服务可以存在于体系结构的所有层次：基础结构层、ui层和数据层。

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However we have not taken the approach of building a generic UI layer and enabling platform specific implementation, that would be much more work.

不过，后来我们也没有采用构建通用UI层启用平台特定实现的方法，因为那样的工作量要大得多。

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SWT, the UI layer that underpins Eclipse, is now able to create full-screen windows for kiosk-mode applications, and windows with transparency for displaying pop-ups or other HUD-type windows.

SWT——支撑Eclipse的UI层，现在能够创建用于kiosk-mode应用的全屏窗口了，也能够创建可以透明显示的弹出窗口或其它HUD类型（HUD-type）窗口。

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By aiming to have one platform run across multiple device footprints, they can leverage the support and tools from the desktop version of Ubuntu and put them into a mobile device running the same code, but with a mobile UI layer on the top.

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There is a small sense of that now happening in the application layer of the upcoming smartphone, though to date most commentary has been around the UI.

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