The functional prototype and principle set was represented by mathematics.

给出了功能原型和原理库的数学表达。

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Prototype: Build a functional prototype based on your assumptions about how to support iterative project planning.

原型：基于你关于如何支持迭代项目计划的设想构建一个功能原型。

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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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The dedicated folks at webOS Nation have managed to get their hands on a functional prototype.

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They are all in an acceleration program that pushes them create or improve their functional prototype and acquire their first users in six months.

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Of course, the proof is in the pour, and the video below (produced with a fully functional Nomad prototype) demonstrates the True Crema Valve and shows us a delicious looking espresso shot.

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