列出产品需要的所有视觉元素，包括图标,标志,窗口,按钮等等。
Make a list of all the graphic “things” needed for the product, including icons, widgets, marketing logos, buttons, controls, etc.

在一张纸上给这些视觉元素都草稿出小图案，让GUI设计师明白你想要的。
Take the list and make a crude thumbnail sketch of each item on a page so the visual designer can “see” what you want

创建层次框架图，如果层次不是特明确的，批注上什么是最重要的。
Create wireframes that show hierarchy and where hierarchy is not clear annotate the wireframes with callouts indicating what is most important

任何视觉限制都要提醒，比如文字大小或者颜色限制。
Note any visual restrictions; for example, type size or limitations to using color

还包括品牌使用规范，限定或者参考。
Include any branding guides, restrictions or preferences

让设计师知道一个好的设计的评判标准，比如“设计必需要有很多的可读性，只使用标准字体”。
Let the designer know the evaluation criteria for a successful design; for example, “the design must be very readable, easy to see in bad light and use only standard type faces.”

列出所有可能影响到视觉设计的技术限制，比如文件尺寸。
List any technical constraints that impact the visual design, such as limits to file sizes

一旦你写了文档说明书，附上一到两个样图，然后让GUI设计师快度的出一对粗略的原型，确保你跟GUI设计师想的是一样的，是同一个评判优秀设计的标准。
Once you have your specification, take one or two (no more) representative screens and have the visual designer do a couple very rapid comps. Do a quick check of the comps to make sure you and the designer are thinking the same way and evaluating the designs along the same criteria.