[picture from mit.edu]

• 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.

翻译：油茶研究会 

相关链接：

The Hand-Off Between Information Architecture and Visual Design

Information Architects Create the Blueprint for User Experience