It is comprised of a UI-design document and a functional UI prototype.

它是由UI设计文档和功能UI原型组成的。

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The player provides extra UI on the left that lets you navigate and explore your prototype, even if it is, as in our case, just a couple of screens without any actual UI.

这个播放器在左边提供了额外的用户界面，可让你浏览和探索你的原型，即使就像我们的例子里的那样，只是一对屏幕而没有任何实际的用户界面。

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Of course, the business logic must be coded in the operations, but no UI code is required to construct a fully functional prototype.

当然，必须在操作中对该业务逻辑进行编码，但是要构造完整的功能原型，不需要编写任何 UI 代码。

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We get a handle on the prototype UI inside DoCoMo's imaginary train right after the break.

ENGADGET: NTT DoCoMo Grip UI detects how you hold your device, makes big phones friendly for tiny hands (video)

Gesture UI is a combination hardware-software prototype that the Japanese carrier is showing at this year's CEATEC showcase in Japan.

ENGADGET: NTT DoCoMo Grip UI detects how you hold your device, makes big phones friendly for tiny hands (video)